The military resumed requiring flu vaccines for some service members after an influenza outbreak among trainees at Lackland Air Force Base in Texas.
Sean Parnell, the Pentagon’s chief spokesman and a senior adviser to Defense Secretary Pete Hegseth, said Undersecretary of Defense for Personnel and Readiness Anthony Tata granted exceptions to the Army, Navy, Air Force, National Security Agency, and Defense Health Agency.
“The decisions were based upon thorough risk assessments and are designed to maximize operational readiness, lethality and force generation, while safeguarding at-risk populations,” Parnell said in a statement. “The department remains committed to the health and readiness of our warfighters and civilian personnel.”
Parnell said the services and departments were responsible for implementation. It was unclear how the exceptions would be carried out.
The decision followed an outbreak at Lackland, where 275 trainees contracted influenza. The Air Force said the outbreak affected the 37th Training Wing over the past three weeks. More than 36,000 recruits pass through the unit each year.
In April, Hegseth issued guidance making the annual influenza vaccine voluntary for all active-duty and reserve service members, as well as Defense Department civilian personnel.
“We’re seizing this moment to discard any absurd, overreaching mandates that only weaken our warfighting capabilities,” Hegseth said in a video posted on X.
The U.S. military’s flu vaccine requirement dated to 1945. Hegseth’s revision differed from long-standing Centers for Disease Control and Prevention guidance, which recommends the shot each flu season for nearly everyone 6 months and older.
Jerome Adams, the U.S. surgeon general during Trump’s first term, wrote on X: “The current flu outbreak at Lackland AFB is a reminder that military readiness is not abstract. Young recruits in basic training are especially vulnerable in group settings. History shows public health measures in the military have long been treated as a force-protection issue, not just personal choice.”