Now there are two. The Moderna Covid-19 coronavirus vaccine received emergency use authorization from the U.S. FDA to join the Pfizer/BioNTech vaccine.
To say that the Centers for Disease Control and Prevention (CDC) has had a rough past four years would be like saying that some of the characters on Games of Thrones ran into some complications.
Here are the typical lengths of the latent period and the incubation period for Covid-19 and how they coincide with the updated CDC quarantine guidelines.