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1918 Flu Pandemic Masks: When “Mask Slackers” Could Be Arrested

June 28, 2026 by Dr. Eeks

Public Health is Weird…

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If you think debates over masks are something new, history has other ideas. A long time ago, before COVID, there was a lot of fighting over the 1918 flu pandemics masks.

During the 1918 pandemic, several U.S. cities required people to wear masks in public.

In San Francisco, the San Francisco Chronicle published a full-page public service advertisement declaring that “the man or woman or child who will not wear a mask now is a dangerous slacker.” Borrowing the language of World War I, the message suggested that refusing to wear a mask wasn’t just a personal choice—it was failing to do your patriotic duty.

The campaign didn’t stop there.

Signs warned people:

“Wear a mask or go to jail.”

And in some cases, authorities enforced it. People were arrested for violating mask ordinances, and newspapers sometimes published the names of those accused of being “mask slackers,” adding public embarrassment to the legal consequences.

Of course, not everyone agreed.

An Anti-Mask League formed in San Francisco in early 1919, with members questioning the effectiveness of mask mandates and protesting government requirements.

Whether you agree or disagree with mask mandates today, one thing is clear:

Strong opinions about public health are nothing new. Especially opinions about masks.

History has a funny way of reminding us that while the diseases change, human nature often doesn’t.

Public Health Lesson

Public health has always involved more than science. It involves politics, culture, trust, communication, personal beliefs and human behavior.

It’s hard to make everyone happy.

(Sources are linked in the article!)

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Next up in public health is weird… Have you heard of the “Mask Slackers”? Turns out strong opinions about masks aren’t new. In 1918, public messaging sometimes used strong language to encourage compliance. History has a way of…feeling familiar. (Sources in comments) #publichealth #didyouknow #history #health

♬ original sound – Dr. EeKS

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Category: Public Health is WeirdTag: 1918 flu pandemic masks, Dr. Eeks, mask slackers, mask slackers on Instagram, mask slackers on Tik Tok, pandemic masks, people arrested for not wearing a mask, public health history, public health is weird

Dr. Eeks

Dr. Eeks runs BloomingWellness.com, exploring strange and trending health stories through a public health lens. She also hosts the Causes or Cures podcast. Join her weekly newsletter for weird public health, new research, and podcast updates.

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