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Why the Pentagon is dropping a flu vaccine mandate

US soldiers are now free to get the flu.

Defense Secretary Hegseth And Joint Chiefs Chairman Caine Hold Press Briefing
Defense Secretary Hegseth And Joint Chiefs Chairman Caine Hold Press Briefing
Defense Secretary Pete Hegseth speaks during a press briefing at the Pentagon on April 16, 2026.
Alex Wong/Getty Images
Cameron Peters
Cameron Peters is a staff editor at Vox.

This story appeared in The Logoff, a daily newsletter that helps you stay informed about the Trump administration without letting political news take over your life. Subscribe here.

Welcome to The Logoff: Hi readers — Donald Trump announced a last-minute extension to the US-Iran ceasefire on Tuesday, hours before the agreement was set to expire. It’s good news, but it doesn’t offer much clarity about what comes next: The status of negotiations remains up in the air, and Trump has said that the US blockade on Iranian ships and ports will remain in effect.

We’ll have more for you on that story once we know more, but for now, here’s another Tuesday story out of the Trump administration that shouldn’t be overlooked: Pete Hegseth’s Defense Department is ending mandatory flu vaccines for soldiers.

What happened? On Tuesday, Hegseth announced the end of the US military’s decades-old mandate requiring all DOD personnel to receive annual flu vaccines, which he described as “restoring freedom to our Joint Force.”

The mandate was first implemented in 1945, according to the Washington Post, and has been in place continuously since the 1950s.

Why the change? In a video announcement, Hegseth connected the flu vaccine mandate with a now-ended policy requiring Covid-19 vaccines for servicemembers, which he described as “denying them simple medical autonomy and the freedom to express their religious convictions.”

“If you, an American warrior entrusted to defend this nation, believe that the flu vaccine is in your best interest, then you’re free to take it. You should,” he said. “But we will not force you. Because your body, your faith, and your convictions are not negotiable — your health.”

What’s the big picture? Hegseth’s “freedom” rhetoric is disingenuous. There’s a long list of standards and requirements the military imposes on soldiers, including some around grooming and physical fitness that have been tightened under Hegseth.

The change also seems likely to have a measurable impact on the health of service members. According to the Military Times, the mandate has been “a major factor in lower rates of hospitalizations among service members than national U.S. rates.”

And with that, it’s time to log off…

I enjoyed how NPR approached this recent story about NASA’s Voyager 1 space probe, which recently had to shut off another instrument to keep going.

Obviously, it’s not entirely good news for the small craft, which is now more than 15 billion miles from Earth and slowly running out of power — but it’s also a welcome reminder that it’s still out there and accomplishing something remarkable, almost 50 years after launch and many decades past its intended five-year lifespan.

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