The U.S. Centers for Disease Control and Prevention still recommends that passengers mask up while on planes, trains or buses, but it’s no longer a requirement
Recent study finds that the same factors thought to encourage hesitancy in the general public – like having right-leaning political views – might also motivate physician opposition to vaccination
Patients with severe Covid-19 infections have symptoms that are similar to autoimmune disorder symptoms, such as blood vessel inflammation, rashes and organ damage
The idea of using genetic material to produce an immune response has opened up a world of research and potential medical uses far out of reach of traditional vaccines