Public Health

How to explain falling COVID-19 mortality rates
"T cells" could provide immunity after antibodies fade
Moderna’s COVID-19 vaccine produces more antibodies than infection
Study: Risk of death from COVID-19 is 45% lower on arthritis drug
Survivors’ plasma might prevent coronavirus infections
FDA: Smokeless cigarettes produce less harmful chemicals
Natural herd immunity to COVID-19 might be impossible
What we know about how the coronavirus affects the brain
New air filter for COVID-19 could lower risk of being indoors
Is the coronavirus airborne, and does it matter?