The latest Covid-19 vaccines from Pfizer and Moderna tend to be exceptionally effective at avoiding severe illness.
More than 100,000 Americans are in COVID-19 hospital, while the nation has recorded its one-worst daily death toll since the pandemic began.
Public health authorities and drug manufacturers need to be open regarding the side effects of coronavirus vaccines, doctors say.
New evidence indicates that individuals who have survived infections with COVID-19 are at increased risk of contracting the psychiatric disease.
A surgical mask is a loose-fitting disposable mask that covers the nose and mouth of the wearer from contact with droplets.