What’s Safe After Your COVID-19 Vaccine?
Please keep in mind that information about COVID-19 and vaccines is evolving, and recommendations may change as we learn more.
Please keep in mind that information about COVID-19 and vaccines is evolving, and recommendations may change as we learn more.
What is a variant of the virus that causes COVID-19? How do they develop? What are the main variants that have been detected? Why are health authorities around the world observing them so closely?