Vaccine Round 2
Brig. Gen. Scott Cain, 96th Test Wing commander, adds a vaccination sticker to his uniform after receiving 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)

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Photo by: Ilka Cole |  VIRIN: 210211-F-GY014-0003.JPG