The Army, Navy, and Air Force are reinstating flu vaccine requirements for basic trainees after an influenza outbreak swept through an Air Force base in Texas, sickening at least 222 recruits and hospitalizing four.
The outbreak came just two months after Defense Secretary Pete Hegseth dropped the decades-long flu shot mandate, calling it “not rational” and framing the change as “restoring freedom” to military members. That didn’t last long.
Pentagon spokesperson Sean Parnell said the decision followed a “comprehensive review” and standard policy of “adapting force health protection measures to critical operational realities.” The Air Force is aiming to vaccinate all recruits at the Texas base, and the Army plans to expand the requirement to troops deploying overseas.
The military’s relationship with vaccines goes back to 1777, when George Washington mandated smallpox inoculation for Continental soldiers. The 1918 flu pandemic killed roughly 43,000 US soldiers — nearly half of all American military deaths in World War I. The first flu vaccine was tested on military members, and the Pentagon issued its first mandate in 1945.
It’s a straightforward calculation: close quarters plus shared facilities equals rapid pathogen transmission. Hegseth’s libertarian experiment lasted about two months before biology intervened.
