Covid-19 was never just another cold. We knew it was going to stick around and keep changing to try to get the upper hand on our immune systems. But we’ve changed, too. Our B cells and T cells ...

A mutation on the spike protein of the virus that causes COVID-19 could help it infect the brain by forcing it to use a cellular "back door." When you purchase through links on our site, we may ...

Early in the beginning of the COVID-19 pandemic, scientists predicted the SARS-CoV-2 virus would mutate slowly. They were wrong. Hundreds of thousands of viral mutations and multiple seasonal ...