The army traded its flu vaccine mandate for ‘medical freedom’ – a virulent disease temporarily adopted

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As of June 23, 2026, a minimum of 222 recruits at the base have fallen sick and 4 have reportedly been hospitalized.

In his April 21 announcement making the flu vaccine non-compulsory, Hegseth cited clinical autonomy and spiritual freedom, describing the vaccination requirement as “overly broad and not rational,” telling troops that “your body, your faith and your convictions are not negotiable.”

The flu shot requirement that Hegseth ended have been in position since 1945, with one temporary pause in 1949. It used to be a part of a practice of army vaccine mandates just about as outdated as the USA itself.

As an epidemiologist who research vaccine-preventable illnesses, I discovered the tip of the flu mandate hanging much less for its rapid affect than for what it indicators. For many of American historical past, army commanders took with no consideration that infectious illness may just price them a struggle, which is why vaccination used to be thought to be an issue of army readiness fairly than private selection.

The Lackland outbreak is proof that the underlying epidemiology has now not modified – simplest the political local weather surrounding public well being.

A convention that began with George Washington

The primary American army vaccine mandate predates the Charter. Within the iciness of 1777, Gen. George Washington ordered the mass inoculation of the Continental Military towards smallpox.

His determination wasn’t ideological – it used to be strategic. The 12 months ahead of, a smallpox outbreak had torn thru American troops outdoor Quebec, contributing to the cave in of the northern marketing campaign. John Adams famously wrote to his spouse, Abigail, that smallpox used to be killing 10 squaddies for each and every one felled in combat.

Inoculation in 1777 used to be itself dangerous. The process, known as variolation, concerned intentionally infecting a soldier with a small quantity of smallpox virus to construct immunity. Washington gambled that shedding some to inoculation used to be higher than shedding a struggle to the virus. Historians have credited the verdict with saving the Continental Military.

The COVID-19 pandemic reframed the politics surrounding vaccine mandates.

That trend held for hundreds of years: When an infectious illness threatened to take extra squaddies off the road than enemy fireplace did, the army required coverage.

U.S. troops gained smallpox vaccinations from the Warfare of 1812 thru Global Warfare II. All over Global Warfare I, the Military added typhoid vaccination. All over Global Warfare II, it expanded vaccine necessities to additionally come with tetanus, cholera, diphtheria, plague, yellow fever and, in 1945, influenza.

1945: New struggle, new vaccine

The flu vaccine mandate grew out of army stories all through the influenza pandemic of 1918. That spring, a singular influenza pressure unfold thru crowded Military coaching camps and traveled to Europe with American troops. About 45,000 American squaddies died of influenza all through Global Warfare I – just about as many because the kind of 53,000 killed in fight.

The 1918 pandemic made transparent {that a} breathing virus may just cripple a military. In 1941, as the rustic ready to go into some other global struggle, the U.S. Military arranged an influenza fee that partnered with the College of Michigan to broaden the primary influenza vaccine. Scientific trials in army recruits confirmed that the vaccine lowered the occurrence of influenza sickness by way of 85%, and in 1945 the army mandated the vaccine. More or less 7 million carrier contributors have been vaccinated that 12 months.

The mandate used to be in brief paused in 1949 after scientists learned the vaccine wanted common updates because of the virus converting. As soon as formulations might be adjusted seasonally, the mandate returned within the early Nineteen Fifties and has stayed in position incessantly – till Hegseth’s alternate of coverage.

The U.S. army followed the flu vaccine mandate after the 1918 influenza pandemic.
Library of Congress

COVID-19 modified vaccine politics

For many years, vaccine mandates have been an unremarkable reality of army lifestyles, however COVID-19 modified that.

In August 2021, all carrier contributors have been ordered to be vaccinated towards COVID-19. Greater than 98% of lively responsibility troops complied, however the mandate changed into a flash level. Greater than 8,000 carrier contributors have been involuntarily discharged for refusing the shot.

In 2023, Congress handed a regulation requiring the Pentagon to rescind the army COVID-19 vaccine mandate. This reversal reframed the politics of army vaccine necessities. In January 2025, President Donald Trump ordered the reinstatement, with again pay, of troops discharged over COVID-19 vaccine refusal.

In pronouncing the tip of the flu mandate, Hegseth relied closely on “medical freedom” language that emerged from the COVID-19 vaccine debate, fairly than on any new proof about influenza or the effectiveness of the flu vaccine.

The clinical freedom motion opposes executive involvement in what its supporters see as private well being choices – together with public well being suggestions comparable to vaccine mandates, protecting and social distancing.

Does the vaccination rationale nonetheless hang?

Critics of the army flu vaccine mandate argued that flu is a milder risk than it used to be in 1918, that carrier contributors are more fit than the overall inhabitants, and that private selection must outweigh public well being good judgment for a seasonal virus.

The epidemiology – and now the outbreak at Lackland – inform a unique tale.

Even if flu seasons can range in illness severity, the virus mutates so unpredictably that pandemic flu seasons – like the ones in 1918, 1957, 1968 and 2009 – are a routine risk. Flu nonetheless hospitalizes and kills tens of 1000’s of American citizens once a year. The Facilities for Illness Regulate and Prevention estimates the influenza vaccine averted kind of 180,000 hospitalizations and 12,000 deaths all through the 2024-2025 season.

The good judgment that drove Washington in 1777 and the Military surgeon normal in 1945 to require vaccination hasn’t actually modified. A unwell soldier can’t deploy, can’t educate and will unfold sickness thru a whole unit. At Lackland, greater than 220 recruits realized that firsthand.

This an up to date model of a piece of writing at the start revealed on April 28, 2026.

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