Vaccine Round 2
Brig. Gen. Scott Cain, 96th Test Wing commander, receives his second dose of the COVID-19 vaccine Feb. 11 at Eglin Air Force Base, Fla. COVID-19 vaccines teach the immune system how to recognize and fight the virus that causes COVID-19. The first dose of the vaccine primes the immune system to generate antibodies. The second dose provides increased antibodies and more protection against the virus. (U.S. Air Force photo/Ilka Cole)