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— Research

EXERCISED OVER NOTHING

Study finds masks don’t impair breathing or cardiopulmonary function

Some of the resistance to wearing masks during the pandemic was fueled by the notion that the nose-and-mouth coverings impaired breathing, and thus cardiopulmonary function, especially during physical activity.

But a November 16, 2020 study published in the Annals of the American Thoracic Society by UC San Diego School of Medicine researchers, with colleagues in Canada and Washington state, found that while masks might feel uncomfortable, perhaps making one’s face hot and sweaty, there was virtually no empirical evidence that they significantly impaired lung function, even during heavy exercise.

“There might be a perceived greater effort with activity, but the effects of wearing a mask on the work of breathing, on gases like oxygen and CO2 in blood or other physiological parameters are small, often too small to be detected.”

Susan Hopkins, MD, PhD

“There might be a perceived greater effort with activity, but the effects of wearing a mask on the work of breathing, on gases like oxygen and CO2 in blood or other physiological parameters are small, often too small to be detected,” said first author Susan Hopkins, MD, PhD, professor of medicine and radiology.

Hopkins and co-authors reviewed all known scientific literature on the topic, including analyses of inhaled and exhaled gases, blood oxygen levels, effects on muscle blood flow, cardiac function and blood flow to the brain. There were no detectable physiological differences based on gender or age. The only exception were persons with severe cardiopulmonary disease in which even the smallest resistance to breathing might prompt dyspnea, the medical term for shortness of breath.

70% Reduced risk of SARS-CoV-2 infection when wearing a mask during high-risk exposures compared to not wearing a mask.

— Education

MAKING HOUSE CALLS DURING A PANDEMIC

Public health has never been more important

When COVID-19 first became publicly available, demand overwhelmed supply, prompting urgent, even desperate, online searches for scarce appointments, followed by long lines and hours of waiting at super stations and clinics.

But after the initial, eager throngs had bared their deltoid muscles to needles inoculating them against the SARS-CoV-2 virus, crowds thinned and in time super stations — temporary facilities erected to vaccinate large numbers of persons quickly and safely — were closed.

Hundreds of millions of Americans have received at least one dose of vaccine. Roughly half of the nation’s population has been fully vaccinated. But early data also exposes a stark truth: Underrepresented groups in the United States are bearing a disproportionate number of COVID-19 cases and deaths and are accessing vaccines at much lower rates.

“There is no genetic predisposition to COVID-19. People of color are severely impacted because of social determinants of health and disparities that have not been addressed,” said Argentina Servin, MD, MPH, assistant professor in the Division of Infectious Diseases and Global Public Health at UC San Diego School of Medicine. “In a high-income country, like the U.S., we should not see these disparities and gaps.”

“In a high-income country, like the U.S., we should not see these disparities and gaps.”

— Argentina Servin, MD, MPH

After watching friends and family suffer, and nearly losing her 80-year-old grandfather, Servin applied for and received a $3 million grant from the National Institute on Minority Health and Health Disparities, part of the National Institutes of Health, to design a program to increase outreach, access and use of COVID-19 vaccines among Latinx and Black communities in six of San Diego’s most heavily affected neighborhoods.

Dubbed “Project 2VIDA!,” Servin and colleagues formed an intervention working group comprised of representatives from community and academic organizations to address challenges in the communities of San Ysidro, Chula Vista, National City, Logan Heights, Lincoln Park and Valencia Park.

The approach was founded on community-based participatory research. Rather than sit behind computers, the team donned their most comfortable walking shoes and canvassed homes and greeted patrons at cafés, grocery stores and other local businesses, engaging residents with questions related to vaccine hesitancy, addressing widespread misinformation and encouraging them to be vaccinated at one of the Project 2VIDA! mobile vaccine units or with its collaborator San Ysidro Health.

But public confidence in vaccination is fragile, especially among communities long suspicious about historical or institutional motivations. Servin said Project 2VIDA! is fighting an uphill battle against myths. Individuals say they do not want to be immunized for fear that the vaccines carry microchips that track their movements. They fear vaccine-induced infertility or safety due to a “rushed” launch. These misconceptions are all false, yet unfortunately common, experts say.

“We have to remind community members that vaccines have helped save millions of lives. Just a few generations ago, people lived under the constant threat of deadly infectious diseases, like smallpox, polio, hepatitis and the flu.”

— Adriana Bearse

“We have to remind community members that vaccines have helped save millions of lives. Just a few generations ago, people lived under the constant threat of deadly infectious diseases, like smallpox, polio, hepatitis and the flu,” said Adriana Bearse, promotion manager in the San Ysidro Health Research and Health Promotion Department.

Because the COVID-19 vaccine is an important part of stopping the pandemic, Servin said Project 2VIDA! seeks to implement and assess a COVID-19 vaccination protocol and establish a model for the rapid vaccination of Latinx and Black adults that can be implemented in other impacted communities.

Beyond community
borders

Since no virus, recognizes borders, the binational region comprised of San Diego and Baja California, Mexico is significantly impacted by the pandemic.

Linda Hill, MD, MPH, professor and interim assistant dean for Community Border Health Partnerships in The Herbert Wertheim School of Public Health and Human Longevity Science at UC San Diego, has spent most of her career addressing the public health needs of migrant workers, immigrants and refugees.

In late-2018, Hill began supporting government agencies with health screenings for asylum seekers entering the U.S., using a congregate sheltering model. At the time, she and a team of community and UC San Diego Health doctors were treating infectious diseases, such as scabies, chickenpox and influenza, but nothing as severe as COVID-19.

Since starting the asylum program in 2021, qualifying persons are now housed in hotel rooms to reduce the risk of contracting and spreading COVID-19. Hill and her team of community health workers and medical providers screen for COVID-19 and conduct house calls for approximately 250 guests per day, checking on pregnant women, providing hypertension medicine and other medications, and caring for acute illnesses. The team has been working seven days a week since March 1, 2021.

It’s a labor of love made up of a community of students from UC San Diego, San Diego State University and the University of San Diego; community health workers; medical residents from UC San Diego Health, Kaiser Health and Scripps Health; and clinicians from UC San Diego Health and the community.

“With 200 arrivals a day, and the challenges of travelers in a pandemic, in no time at all you have 600 people under your care.”

— Linda Hill, MD, MPH

“With 200 arrivals a day, and the challenges of travelers in a pandemic, in no time at all you have 600 people under your care,” said Hill. But Hill said the long hours are worth it, with the added bonus of having trainee participation.

“We are building future public health professionals who will understand and care for displaced populations, who will be committed to providing culturally competent care and who will address diversity and equity,” she said.

Hill has also been involved in projects managing the impact of COVID-19 on vulnerable populations in Mexico. Early in the pandemic, the Mexican border town of Tijuana was devastated by severe cases of COVID-19 and local hospitals experienced shortages of personal protective equipment for health care providers treating critically ill patients.

UC San Diego Health formed Aliados por Salud, a volunteer team of critical care doctors, nurses and respiratory therapists who collaborated daily with counterparts at Tijuana General Hospital to combine their knowledge and experience on how best to treat patients diagnosed with COVID-19.

For six months, the two hospital systems worked and learned together to manage severe cases and to secure donations of masks, face shields, goggles, pulse oximetry units and other supplies for Tijuana General Hospital.

In 2021, Hill and other UC San Diego colleagues, including Timothy Rodwell, MD, PhD, MPH; Richard Garfein, PhD, MPH; and Steffanie Strathdee, PhD, joined the Consulate General of Mexico in San Diego and various health agencies and universities in Baja California to conduct a survey of the prevalence of COVID-19 in the Mexican cities of Tijuana, Mexicali and Ensenada.

“This project is an example of binational cooperation and collaboration — government, academia and non-governmental organizations coming together to design public policies for the prevention, management and eventual eradication of COVID-19,” said Hill.

“Working directly in the communities most affected by disease or illness allows us to find innovative solutions that address unique challenges and have the greatest impact where it is needed most.”

— Education

A MEDICAL STUDENT’S FIGHT AGAINST INEQUITY

For Betial Asmerom, medicine is in sore need

Down on one knee in pristine white coats, UC San Diego School of Medicine students rallied against a public health emergency — systemic racism — that had been catapulted into the public eye by the death of five African Americans in five separate incidents over a five-month period in 2020.

Ahmaud Arbery was gunned down while jogging. Breonna Taylor was shot and killed during a botched police raid on her apartment. Daniel Prude and George Floyd both died while under police restraint: Prude while suffering from a mental health episode, Floyd for suspicion of using a counterfeit $20 bill. Rayshard Brooks was fatally shot by police responding to a call of a man asleep in his car at a fast-food restaurant.

Betial Asmerom, a fourth-year medical student and one of the organizers of the student protest, said that for years Black, Latino and Indigenous medical students had been organizing to call attention to racism and disparities in medical education and health care.

“I don’t know if the nation was ready to have these conversations about race before. I’ve been raising the flag on these issues since I was in high school. People in power have to be receptive to have these conversations if we want to make any change. Enough was enough.”

— Betial Asmerom

The deaths of Arbery, Taylor, Prude, Floyd and Brooks resulted in wide-scale demonstrations protesting police abuse and racial injustice in the United States.

Students like Asmerom choose medical education as a way to learn how to heal. In a country roiling with anger, racial tensions and despair, they felt the call to heal even stronger. But it would not be an easy task, and the concurrent COVID-19 pandemic, which was disproportionately impacting communities of color, would only make things harder.

“My family are immigrants from Eritrea. I chose medicine because I want to serve my community and all communities impacted by inequity,” said Asmerom, who is enrolled in a dual-degree program called the UC San Diego School of Medicine Program in Medical Education – Health Equity. She has already earned her master’s degree in public health, with her medical degree soon to follow.

The collision of the anti-racism movement and glaring health care inequities sharpened by the pandemic prompted Asmerom to speak out louder and more boldly.

“When we first started hearing about the pandemic and all the data coming out, one of the first things I said was ‘I can’t wait until data on the pandemic is published by race. I already know what it’s going to say,’” said Asmerom.

“These events really lit me up to keep my focus on equity and advocacy work because we’ve seen, in the pandemic, how people of color have been disproportionately impacted, and yet not prioritized in the solutions to mitigate the impact of the pandemic.”

“My family are immigrants from Eritrea. I chose medicine because I want to serve my community and all communities impacted by inequity,”

— Betial Asmerom

Black medical students at UC San Diego did not mince their words. In a publicly published letter, they wrote that they were “tired of asking our institutions to be better for us and for society.” They called for a commitment from both the university and the health system to become anti-racist institutions.

Leadership heard the concerns, fears and worries of not just students, but the echoing words of faculty and staff. They identified four immediate actions to foster an environment supportive of Black and underrepresented minorities in medicine.

Among the steps was mandating an anti-racism training program; implementing a new policy to address racism and discrimination from patients and visitors at UC San Diego Health hospitals and clinics; hiring leaders in equity, diversity and inclusion for UC San Diego Health Sciences and the health system; and the creation of an Anti-Racism Task Force.

Because of her leadership roles in regional and national student organizations and her commitment to equity, UC San Diego Health CEO  Patricia Maysent hired Asmerom as a project consultant on anti-racism initiatives for the health system.

Among Asmerom’s proudest achievements as a consultant is her role on the COVID-19 vaccine committee.

UC San Diego Health collaborated with community-based organizations to deploy mobile vaccine clinics into the San Diego communities most impacted by COVID-19 in order to reach more patients more effectively, and help ease barriers, such as access, lack of transportation to vaccine appointment sites and distrust in health care providers outside of local communities.

“Being able to help with equitable vaccine distribution, and doing it in a way that intentionally centers on the needs of minoritized communities, represents the kind of care I want to provide as a physician, and I get to do it while still in medical school. I see the impact on communities that look like me. I see the gratitude on their faces. I get to use these platforms to ensure that my community is taken care of in a meaningful way,” said Asmerom.

“I hope that this momentum is not lost, that we continue to center equity and talk about racism in a really honest and authentic way so that we continue to make strides toward making UC San Diego, the medical school, the health system and the country a more equitable place for Black, Indigenous, Latinx and other minoritized groups. We cannot fall back into a pattern of ignoring the people who are the most marginalized and hurt by inequitable systems.”

— Education

AN INFODEMIC OF MISINFORMATION

As the virus spread, so too did rumors, fake news and fraud

One adverse side effect of pandemics is the corresponding outbreak of misinformation and scams, the latter both medical and financial. They are as inevitable as, well, the pandemics themselves.

The spread of misinformation, intentional or not, has been rampant during the COVID-19 pandemic.

A Brookings Institution study in late-2020, using monthly data from the Franklin Templeton-Gallup Economics of Recovery Study, found significant variation in understanding of COVID-19 facts which, in turn, distorted public policies and behaviors.

Not all of the misinformation, particularly on social media, was promulgated by human beings, however. At least not directly. For example, in a research letter published June 7, 2021, in JAMA Internal Medicine, a diverse team that included UC San Diego scientists found that significant misinformation about face masks and COVID-19 was spread by “bots,” autonomous software programs that allow individuals to generate content and share it broadly via numerous automated accounts, amplifying messaging.

Specifically, first author John W. Ayers, PhD, associate professor in the Division of Infectious Diseases and Global Public Health at UC San Diego School of Medicine, and colleagues measured how quickly links were shared in a sample of 300,000 posts to Facebook groups that shared 251,655 links. They found that links shared by Facebook groups most influenced by bots averaged 4.28 seconds between shares, compared to 4.35 hours for Facebook groups least influenced by bots.

One in five of the posts made to Facebook groups most influenced by bots claimed masks harmed the wearer, contrary to scientific evidence. The World Health Organization has called the phenomenon an “infodemic of misinformation.” While the purpose of misinformation is to give it freely and often, the COVID-19 pandemic also provoked an abundance of efforts to essentially take, mostly money in the form of bogus COVID-19 products and therapies.

Writing in the August 25, 2020 issue of the Journal of Medical Internet Research Public Health and Surveillance, UC San Diego School of Medicine researchers found thousands of social media posts on two popular platforms — Twitter and Instagram — tied to financial scams and possible counterfeit goods specific to COVID-19 products and unapproved treatments.

Lead author Timothy Mackey, PhD, associate professor in the Department of Anesthesiology, and colleagues surveyed the internet between March and May 2020 using a combination of Natural Language Processing and machine learning to identify nearly 2,000 fraudulent postings “likely tied to fake COVID-19 health products, financial scams and other consumer risk.”

“We’re in a post-digital era and as this boom of digital adoption continues, we will see more of these fraudulent postings targeting consumers as criminals seek to take advantage of those in need during times of crisis.”

— Timothy Mackey, PhD

Mackey’s research team continues to do research on fake COVID-19 products, including vaccines and vaccination cards, through a sponsored project with Google.

“We’re in a post-digital era and as this boom of digital adoption continues,” said Mackey, “we will see more of these fraudulent postings targeting consumers as criminals seek to take advantage of those in need during times of a crisis.”

3 tips for identifying fraudulent posts or scams

— Education

COLLABORATION, COMMUNITY AND FOLLOWING THE SCIENCE

The formula for UC San Diego’s Return to Learn success

UC San Diego entered 2020 in growth mode, well-positioned to advance progress toward the goals outlined in its long-term strategic plan to drive the physical, intellectual and cultural transformation of the university.

But the emerging public health crisis in Wuhan, China led renowned infectious disease expert Robert “Chip” Schooley, MD, professor of medicine and chief of the Division of Infectious Diseases at UC San Diego Health to ask UC San Diego Chancellor Pradeep K. Khosla what the university would do if forced to shut down for a prolonged period of time in response to the crisis.

While some universities took a wait-and-see approach, Khosla recognized the seriousness of the situation and knew that thoughtful and immediate action was necessary. He considered the university’s vast human, research and infrastructure resources, and knew UC San Diego was uniquely suited to address this challenge head-on.

Early action
was key

Khosla embraced the university’s deeply ingrained, interdisciplinary ethos to assemble experts from UC San Diego’s faculty, administration and staff to form a task force that could evaluate the rapidly changing situation, regionally and globally. “We assembled our emergency operations centers (EOC) for our campus and for our hospitals. The EOCs explored options and models for impacted operations,” said Khosla. “So, when the state mandated the shutdown in March 2020, we were already a step ahead.”

“We assembled our emergency operations centers (EOC) for our campus and for our hospitals. The EOCs explored options and models for impacted operations.”

— Pradeep K. Khosla

Students, faculty and staff were sent home. Mechanisms and platforms were quickly stood up and communicated to ensure everyone was supported through the transition. Remote operations were stabilized. A newly-formed Campus Operations Group rolled up its collective sleeves. And the necessary work of understanding detection, intervention and mitigation of the COVID-19 virus began with a singular goal: to return to in-person learning, research and service to the community in the safest way possible.

Return
to Learn

On May 5, 2020, UC San Diego became the first university to announce a commitment to incrementally bring back a portion of its campus population in Fall 2020 through a flexible, multilayered and data-driven approach called Return to Learn or RTL.

RTL was built upon three key pillars: risk mitigation, viral detection and intervention. Khosla often referred to the approach as a “Swiss cheese” model. “Every layer has its holes,” Khosla told The New York Times in December 2020. “But put together, it’s a solid block.” Hundreds of employees and students successfully built and tested new systems and protocols on campus with a limited number of students, researchers, faculty and staff in advance of the fall quarter to ensure the feasibility and scalability of the plan. 

A Campus
reimagined

Faculty reconfigured instruction for remote and hybrid learning, ensuring that the academic rigor of the university was upheld. Staff reimagined nearly every service to ensure access to important resources. UC San Diego’s Facilities Management team, with help from the university’s engineering experts, reconfigured the campus environment, including traffic flow.

Academic buildings, residence halls and retail and dining facilities were adapted to provide one-way traffic into and out of spaces. Experts like Kimberly A. Prather, PhD, UC San Diego Distinguished Professor and Distinguished Chair in Atmospheric Chemistry, served as a resource to guide updates and adaptations to airflow in campus buildings, helping promote circulation of fresh air flow and reduce disease transmission risks.

More than 200 critical custodial staff were devoted to enhanced cleaning and sanitization protocols, disinfecting light switches, elevator buttons, desk tops and other surfaces twice daily. And 1,500 hand-sanitizing stations were installed across campus.

Ready to
return

With confidence built through practice, UC San Diego put its plan into action and successfully welcomed 5,730 undergraduate students back to a transformed campus for the Fall 2020 quarter. Returning students were introduced to new safety protocols, including mandatory testing during move-in. The Student Code of Conduct was updated to establish clear expectations for student behavior and to remind students of the health consequences of risky behaviors.

On-campus residence housing was limited to 50 percent capacity, with all students residing in single-occupancy rooms. More than 600 beds on campus were reallocated to serve as isolation and quarantine housing for students who received a positive COVID-19 test result. These students would receive special support and access to care.

Bright banners, flags and digital signage were placed on light posts, public transportation, buildings and elsewhere throughout campus to encourage students and to keep safety awareness high. Ground markings signaling physical distance were located where students tended to congregate.

Case rates
remain low

UC San Diego defied the odds and demonstrated that a successful return to campus was possible. The 14-day COVID-19 positivity rate for UC San Diego students on and off campus averaged between 0.12 percent and 0.87 percent throughout Fall 2020. During that time, the positivity rate in San Diego County averaged between 2.7 and 8.7 percent.

A surge was anticipated when students returned from winter break in 2021, but the university was willing to increase campus density because the data was clear: The approach was working, and new innovations, such as the vending machines, were making it easier for students to comply with testing requirements and adhere to safety protocols.

Nurturing
community

There was a fourth and critical element to the success of RTL: students. The weakest link in any plan is human behavior. The nation saw this play out as other universities struggled to contain the virus after reopening their campuses in the fall of 2020.

But UC San Diego’s commitment to inclusion and innovation meant that students were involved in RTL from its inception. They were empowered to own the issue, plan and implement approaches in ways that worked.

By making meaningful contributions, the student community was invested in creating and sustaining a safe and fulfilling on-campus experience for everyone. Student leaders and Student Affairs came up with novel ways to engage students, including the creation of Triton Health Ambassadors.

More than 400 trained peer ambassadors/educators, easily recognizable by their bright yellow shirts, positioned themselves across campus to personally engage with students and provide important support by “catching” and recognizing positive behaviors and serving as resources for students seeking information.

“Our students behaved in an exemplary manner. I mean it was unbelievable,” Khosla said in an April 2021 interview with KPBS-TV. “We were expecting it, and they beat our expectations and then some. To me, they were the reason we were so successful.”

“We were expecting it and they beat our expectations and then some. To me, they were the reason we were so successful.”

— Pradeep K. Khosla

Collaboration

Collaboration with UC San Diego Health also guided campus efforts to keep positive case rates low. These efforts included:

— Research

EXERCISED OVER NOTHING

Study finds masks don’t impair breathing or cardiopulmonary function

In the early days of the pandemic, scientists and physicians struggled just to understand the scope and scale of the looming public health threat. Who was infected? How many? Where?

Answers were scarce, in large part because testing was equally so, and without comprehensive testing data, no one really knew what was happening.

In late-February, the Food and Drug Administration (FDA) debuted guidance permitting university-based hospital labs to develop SARS-CoV-2 diagnostic tests. Steve Gonias, MD, PhD, chief of pathology services for UC San Diego Health and chair of the Department of Pathology at UC San Diego School of Medicine, headed a committee to coordinate lab efforts among the five UC medical centers and later represented those labs in UC’s broader response to the pandemic.

In late March, UC San Diego Health announced it was partnering with five leading in vitro diagnostics manufacturers — Thermo Fischer Scientific, Roche Diagnostics, GenMark Diagnostics, Abbott Diagnostics and Luminex Corporation (the last being a test developed at UC San Diego) — to expand testing capacity. Each manufacturer produced its own testing platform, but none alone could meet UC San Diego’s overall need. In combination, however, they might help weather the coming storm.

70% Reduced risk of SARS-CoV-2 infection when wearing a mask during high-risk exposures compared to not wearing a mask.

Ordinarily, said David Pride, MD, PhD, an infectious disease specialist and director of microbiology at the Center for Advanced Laboratory Medicine (CALM) at UC San Diego Health, a single testing platform would be used for sake of consistency.

“We took a diversified approach to meet our patient care needs. Having different platforms means we are able to maintain testing supply, even when one or more manufacturers can’t meet our testing needs,” Pride said.

The goal was to boost testing capacity to 1,000 to 1,500 tests per day within two to three weeks, up from the then-current rate of just a couple dozen tests per day. That ambition was quickly reached. Within six months, CALM had expanded capacity to 6,000 COVID-19 tests daily. Typical turnaround time was reduced to approximately 16 hours.

“In my 17 years as chair of the Department of Pathology, this is perhaps the best example of our pathology lab directors and hospital leaders coming together to accept a challenge on behalf of our entire state and country,” said Gonias. “We succeeded at a high level.”

In April 2020, UC San Diego Health launched serological testing, which looks for the presence of antibodies to the novel coronavirus, evidence that a person has been previously infected, even if they never experienced tell-tale symptoms.

“This is part of the next wave of testing,” said Ronald W. McLawhon, MD, PhD, director of CALM and UC San Diego Clinical Laboratories and chief of the Division of Laboratory and Genomic Medicine. “It’s intended to answer those growing questions about who has been infected and who might still be vulnerable to exposure.”

“We took a diversified approach to meet our patient care needs. Having different platforms means we are able to maintain testing supply…”

David Pride, MD, PhD

Serological testing was conducted most often in the early months of the pandemic, but less so as vaccination rates increased, with more and more persons possessing antibodies through inoculation.

In May, UC San Diego went live with its own university-based, FDA-approved COVID-19 diagnostic test.

Other UC labs soon followed. On August 31, 2021, UC San Diego Health crossed a milestone, performing its millionth COVID-19 test.

Return
to Learn

A major component to bringing students back to campus and the resumption of in-person instruction was widespread testing, which began with the official launch of the Return to Learn (RTL) program in May 2020.

Testing formally began with on-campus locations providing self-administered, nasal swab-based COVID-19 tests to the approximately 5,000 undergraduate and graduate students who continued to reside on campus, with plans to expand to monthly testing of all 65,000 students, staff and faculty in the fall.

“Asymptomatic testing is important because most of the transmission of the virus is done by people who aren’t having symptoms”

Robert Schooley, MD

“Asymptomatic testing is important because most of the transmission of the virus is done by people who aren’t having symptoms,” said Robert Schooley, MD, an infectious disease specialist, professor of medicine and one of RTL’s leaders.

“People who do develop symptoms begin to shed virus from the nasopharynx two or three days before those symptoms appear. These individuals feel fine, yet they are shedding larger amounts of the virus at this stage of the illness than after they become ill. This happens because in the beginning stages, the virus turns off the ‘first response’ elements of the immune system. These responses are responsible for the flu-like symptoms we experience in most viral infections. The virus grows unimpeded and leaves us unaware of our infection. This phase of the illness is known as the “pre-symptomatic phase.”

In October 2020, more than 6,000 students moved into dorms, which had been reorganized to incorporate pandemic mitigation measures, such as single-resident rooms. Those numbers expanded with the winter semester and continued to grow, along with the percentage of courses offered in-person.

Throughout, testing has continued unabated, fueled by easy-to-use vending machines that dispense COVID-19 tests, the involvement of the Expedited COVID IdenTification Environment (EXCITE) lab (which in tandem with CALM doubled testing capacity) and other monitoring measures. The tests are free and available to students, staff and faculty.

On September 20, the 2021 Fall Quarter began, with total enrollment exceeding 40,000 students. Of the nearly 12,000 undergraduate students who had moved into campus housing, only 13 tested positive for COVID-19.

Beyond
campus

With time, the ability and capacity of UC San Diego clinicians and scientists to test for COVID-19 expanded dramatically. It was offered in drive-through settings, to persons requiring testing before travel and to other public institutions, such as local schools via the EXCITE lab, who needed an early detection system in order to reopen their own classrooms.

— Research

EXERCISED OVER NOTHING

Study finds masks don’t impair breathing or cardiopulmonary function

When you enter the conference room on the first floor of UC San Diego Medical Center in Hillcrest, it looks like most spaces where meetings are held: A 12-foot-long, walnut-colored table takes up the middle of the room. Chairs and mostly blank walls surround it.

But in emergencies, that room becomes a sort of crisis control center, where experts, highly skilled at operating clinical and non-clinical areas and aspects of the hospital system, convene to sort out issues, make decisions and find remedies. When that happens, phones on the table start ringing constantly. The walls start to fill with pinned notes and broad sheets of butcher paper covered with names, numbers and data. A large, flat-screen TV at one end of the room is turned to local news or video feeds around the hospital. Doctors, nurses, administrators and staff hustle in and out.

The room is transformed. It is now a Hospital Command Center (HCC), a designation activated by events ranging from local wildfires or major power outages to internal issues that might temporarily and significantly disrupt services. It’s a carefully structured operation with specific roles, such as Incident Commander, Safety Officer, Logistics Officer and Public Information Officer, each with its own set of responsibilities.

“We all hung on their every last word, afraid to miss a vital piece of information and hungering to learn more about the novel coronavirus.”

Yadira Galindo

On February 5, 2020, the HCC was activated for what would become the COVID-19 global pandemic.

Staff across all areas of the hospital system were alerted by their pagers suddenly and loudly pinging. It was their cue to head toward the HCC ASAP, and take their seat at the table.

“What has never ceased to amaze me in the 12 years I’ve had the privilege and honor to be a part of the organization, is that people always come in willing to help, even if they are nervous to step out of their comfort zone,” said Monique Imroth, director of Emergency Management and Business Continuity and Telecom Operator Services at UC San Diego Health.

Carrying the communications pager and on-call, Yadira Galindo, then-senior communications and media relations manager at UC San Diego Health, was among the first staffers to arrive at the HCC that February day.

“There was a frenzy of requests to develop internal and external communications, yet the command center became unnervingly quiet when a member of the infectious disease team gave an update,” said Galindo. “We all hung on their every last word, afraid to miss a vital piece of information and hungering to learn more about the novel coronavirus.” Soon, Galindo was joined by colleague Jeanna Vazquez, who had only joined the communications team a few weeks prior.

“I often found myself going to work and coming home in the dark,” said Vazquez. “The energy walking into that room every day was palpable. We were surrounded by such incredible minds that wanted to help and prepare our staff for this crisis as best as possible.”

“There might be a perceived greater effort with activity, but the effects of wearing a mask on the work of breathing, on gases like oxygen and CO2 in blood or other physiological parameters are small, often too small to be detected.”

Susan Hopkins, MD, PhD

As the hours turned to days, weeks, months and now more than a year, the pandemic has become the longest HCC activation in UC San Diego Health history at more than 650 days, and counting.

“The longest HCC activation prior to the pandemic was seven days during the 2007 San Diego wildfires,” said Imroth.

In the beginning, the HCC was open seven days a week, with some staff members putting in 70- to 90-hour weeks. Daily topics ranged from proper PPE protocols, staffing and training for the COVID-19 units to communicating with Chinese patients airlifted from Wuhan and how to best submit COVID-19 tests to the Centers for Disease Control in Atlanta for processing.

People who had never been part of an HCC were tapped. “We were using our collective knowledge, skills, abilities, talents, desires and efforts to synergize and band together,” said Imroth.

There was also a fear factor. “The command center sits in the hospital setting. People were wondering if they were going to catch the virus and bring it home to their families.

“Part of my job is to connect with everyone in that room and let them know I am there for them. If I found out someone in the HCC liked peanut M&Ms or had a dietary requirement or drink preference, we made sure to provide those comforts. If I knew someone was feeling uneasy, I shared my own feelings with them. I am a fan of candid conversation, and sometimes humor, to eliminate anxiety and let others know they are not alone. And during that time, we all needed to know we were not alone.”

As more was learned about the novel coronavirus and COVID-19, and guidelines emerged and evolved regarding masking, physical distancing and reducing transmission risks, HCC operations settled into a sort of routine. After seven months working around that conference room table, and realizing that the pandemic was not going to end any time soon, the decision was made to go remote. It had never been done before for a major crisis event.

“We transitioned to a virtual command center slowly. It was similar to the physical command center in that we still had a plethora of meetings and briefings. We just did them over Zoom instead of from across a table,” said Imroth. “As things changed with the pandemic, we adapted too.”

The virtual HCC continues, with weekly briefings for key leaders and occasional sessions as needed. Hundreds of all-staff emails have been sent, updating employees to the situation and needs.

Recalling 2020, Imroth said some lessons carry forward.
“I think what we found out is that we need each other.
We need each other to get through these difficult times.
We need each other as cheerleaders.
We need each other as support teams.
We need each other to laugh with.
We need each other to cry with.
We need each other to rant with.
We need each other.”

Collaboration

Collaboration with UC San Diego Health also guided campus efforts to keep positive case rates low. These efforts included:

— Research

Pooling Patient Data to Answer Big Questions

Health system consortium enabled clinicians, researchers, patients and the general public to submit questions to be answered by COVID-19 patient medical record data from 200+ hospitals

Throughout the COVID-19 pandemic, there has been an urgent need to better understand who is at greatest risk for severe disease, how the disease and treatments have evolved, and how to better predict the need for resources. But answers require lots of data, such as what patients have experienced and what factors are associated with different treatment outcomes.

To provide this information, a research consortium quickly formed in the summer of 2020. The team built a system in which clinicians, researchers, patients — anyone, really — could submit questions that could be answered by COVID-19 patient record data from more than 200 participating hospitals. Questions are submitted and select answers are provided via a web portal at COVID19questions.org.

The consortium, called Reliable Response Data Discovery (R2D2), was led by Lucila Ohno-Machado, MD, PhD, chair of the Department of Biomedical Informatics at UC San Diego Health, and made possible by seed funding from the Gordon and Betty Moore Foundation. R2D2 comprised 14 health systems.

“No single hospital alone has treated enough patients with COVID-19 to be able to see reliable patterns emerge and use that information to guide the direction of new studies,” Ohno-Machado said. “That’s why we formed the R2D2 Consortium.”

Here’s how the COVID19questions.org site works: Users submit questions about adults hospitalized with COVID-19. Consortium team members evaluate the submissions for clinical utility and the likelihood that available data can provide answers. Questions are then translated into a computer code that queries a variety of electronic medical records. Each health system runs the code on their own patient records and provides the results to the consortium. When sufficient results accrue to be statistically meaningful, the answers are posted back to COVID19questions.org — not as definitive conclusions, but as data in the form of charts or other graphics, which researchers can further pursue.


Among the questions explored:

• What is the mortality rate for hospitalized COVID-19 patients with each blood type?
• What is the mortality rate for COVID-19 patients with a history of hypertension who received anti-hypertensive medications?
• How does the mortality rate compare between hospitalized adult COVID-19 patients who received glucocorticoids and those who didn’t?

Between January 1, 2020 and March 13, 2021, the COVID19questions.org site drew from data on more than 55 million patients, including more than 3.4 million patients who were tested for COVID-19, 320,000 diagnosed with the disease, 80,000 hospitalized and 10,000 who died.

“The scientific community has talked about using electronic medical records for guiding research and for answering relevant questions for a long time,” Ohno-Machado said. “But until this pandemic, we hadn’t been doing it in a way that the public can see — this is much different than when only scientists can ask questions and publish their findings in academic journals.”

While the consortium’s seed funding has come to an end, the site continues to answer questions with the support of several consortium institutions.

Ohno-Machado said she’s looking forward to beginning to characterize “long COVID” — the long-term health effects experienced by many survivors. She’s curious about the types of symptoms people experience the most and whether they differ by gender, race and ethnicity.

Already, the consortium is finding that among COVID-19 survivors, mental health issues are most prevalent. And hair loss is more prevalent in female survivors than male.

“As the nature of the pandemic is changing, so is the nature of the questions,” she said.

— Research

EXERCISED OVER NOTHING

Study finds masks don’t impair breathing or cardiopulmonary function

For refugees living in San Diego, the challenges caused by a global pandemic were magnified in a city they had just begun to call home. In response, the UC San Diego Refugee Health Unit shifted its focus to supporting members of communities experiencing systemic inequities exacerbated by the public health crisis. Work began with a survey of the San Diego refugee community, the first in more than 15 years.

Surveyors learned that nearly one-third of families had canceled or missed health appointments during the pandemic. In more than 40 percent of surveyed families, at least one member had lost their job; 60 percent of families couldn’t pay rent and feared they would be evicted.

“For us, our work is more about looking at the issue of systemic racism and tackling that,” said Amina Sheik Mohamed, founding director of the Refugee Health Unit.

“There might be a perceived greater effort with activity, but the effects of wearing a mask on the work of breathing, on gases like oxygen and CO2 in blood or other physiological parameters are small, often too small to be detected.”

Susan Hopkins, MD, PhD

“Right now we’re figuring out where the gaps are to meet the community where they are. With our approach, we collect information on what is needed, how to get these resources to the community and then we go to the next problem. We’re climbing the ladder together. It’s not one group, but all of us, and it’s something to be proud of.”

After the survey, the Refugee Health Unit served as a conduit between the refugee community and the County of San Diego by holding meetings with community health care workers and local government officials.

“We received weekly updates from the county on the pandemic, including vaccine eligibility and tier restrictions, and then took those updates back to our community health care workers who disseminated the information to refugee community members,” said Reem Zubaidi, manager of the Refugee Health Unit. “This was essential to the whole process. We can’t understate how important it is to provide this information in a person’s primary language from someone who they can relate to and converse with in their preferred communications method. It’s not just translation, it’s cultural.”

— Research

EXERCISED OVER NOTHING

Study finds masks don’t impair breathing or cardiopulmonary function

In 2020, Brenda Tanoi lost one or two family members or friends each month to COVID-19. In December 2020, the 68-year-old Logan Heights resident and retired educator from American Samoa was infected herself with the virus.

On the day in mid-April 2021 when these photos were taken, Tanoi was at home, still recovering from her bout with COVID-19 and awaiting her second shot of the Moderna vaccine and a dose of hope from a nurse practitioner with UC San Diego Health’s Population Health Services Organization (PHSO).

“There might be a perceived greater effort with activity, but the effects of wearing a mask on the work of breathing, on gases like oxygen and CO2 in blood or other physiological parameters are small, often too small to be detected.”

Susan Hopkins, MD, PhD

70% Reduced risk of SARS-CoV-2 infection when wearing a mask during high-risk exposures compared to not wearing a mask.

Early in the pandemic, PHSO brought together staff in social work, nursing and pharmacy to anticipate the physical and emotional needs of high-risk seniors, those age 65 and older. The effort included a call center where staff answered questions, triaged needs, provided vaccine education and sometimes just offered a compassionate ear. Ten team members work the phones, handling approximately 10 to 15 calls each, daily.

PHSO’s at-home service took center stage during COVID-19 vaccinations. Staff could reach out to senior patients whose health prevented them from traveling to a vaccination site. As of May 2021, there have been more than 1,000 home visits. “We try to make doing the right thing the easy thing for our elderly patients, helping them get through this marathon,” said Ming Tai-Seale, PhD, director of research and learning at PHSO.

In her visit, Tanoi gratefully and joyfully welcomed visiting nurse practitioner Janet Davis. “I am honored to tell everyone I am fully vaccinated,” Tanoi said. “I want to stop going to memorial services. I want to enjoy many more birthdays and holidays with my family, for as long as I can.”