The highly transmissible omicron variant of the coronavirus has taken over as the dominant strain in the United States, resulting in breakthrough infections among the vaccinated. Omicron has sparked alarm both internationally and in the United States, where it accounted…

After making a vaccine for coronavirus, you have to get it to the masses. But that’s not so easy for a so-called cold chain vaccine, requiring exacting temperatures across its journey. It also takes two shots. Vaccinating much of the…

Antibodies are one of the ways the human body fights infection from the coronavirus. Researchers believe testing for covid-19 antibodies can lead to possible treatments for the virus and help indicate when to reopen society. Read more: SPECIAL OFFER: To…

People who have compromised or suppressed immune systems are considered high risk for contracting covid-19. The Post asked immunocompromised people to share their stories as the coronavirus continues to spread. Read more: https://wapo.st/2xW9IhK. SPECIAL OFFER: To thank you for your…