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

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.

Two Black women stand outside wearing blue N95 face masks.

Does Your Vaccine Type Matter in the Battle Against COVID?

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.

A health professional wearing a blue latex gloves delivers a COVID-19 vaccine in to a patient's shoulder.