Latest Updates

COVID-19 Masks: Expert Tips for What You Should (and Shouldn’t) Do

May 31, 2023
Face masks remain crucial in preventing the spread of COVID-19, even with vaccine availability. The decision to wear masks depends on vaccination status, risk factors, and local hospitalizations. Medical N95, KN95, or KF94 masks offer the best protection.

Does Your Vaccine Type Matter in the Battle Against COVID?

May 09, 2023
COVID vaccine efficacy varied by age, BMI, sex, and smoking status, with levels changing over six months in a UCSF-led study. Pfizer and Moderna had higher antibody responses than Johnson & Johnson at one month, but Johnson & Johnson overtook them at six months.

How to Improve COVID Vaccination Rates With Emergency Room Messaging

February 22, 2023
UCSF researchers found that distributing pro-COVID-19 vaccine information in EDs in English and Spanish increased vaccine acceptance, especially among Latinos and those without primary care physicians.

COVID-19 Vaccines, Prior Infection Reduce Transmission of Omicron

January 02, 2023
California prisons saw more than 20,000 COVID-19 Omicron cases over a five-month period. However, vaccination and boosting kept hospitalization and death rates low.

Feeling Winded After Your Workout? Long COVID May Claim Another Symptom

October 12, 2022
A new study points to another persistent effect of COVID-19, identified months after infection: reduced exercise capacity.

Omicron’s Evolution and the New Bivalent COVID-19 Booster

October 04, 2022
Last month new “bivalent” booster vaccines made by Moderna and Pfizer became available that protect against currently circulating Omicron variants as well as earlier strains of the SARS-CoV-2 virus that causes COVID-19. This Q&A features Joel Ernst, MD, a UCSF professor of medicine whose...

Ethnicity, Poverty, Low Community Involvement Linked to Lasting Loneliness

August 25, 2022
Most people are at risk for periodic loneliness, but for midlife and older adults who identify as Hispanic/Latinx, or who live in poverty, loneliness may be less likely to resolve over time.

San Francisco, San Mateo Co. Residents Urged to Share Long COVID Stories

August 11, 2022
UCSF, San Francisco Department of Public Health (SFDPH) and San Mateo County Health (SMC Health) are partnering with local community groups to learn about long COVID. Their project, Let’s Figure Out Long COVID – Tell Us Your Story, Bay Area, will call local residents of all ethnicities and...

People in Shelter-in-Place Hotels Used Less Acute Health Services

July 27, 2022
San Francisco’s pandemic policy of offering hotel rooms, meals, and medical services to unhoused populations saw the unintended benefit of dramatically lowering the use of emergency medical services.

Overcrowding, Old Buildings Fueled COVID Surge in California Prisons

July 05, 2022
Overcrowding, antiquated buildings, rapidly changing conditions and the need for complex coordination helped drive a dramatic COVID-19 surge in California’s prisons, according to a new report from UCSF and UC Berkeley.