Everyone wore masks during the 1918 flu pandemic. They were useless.

On Nov. 1, 1918, Eugene C. Caley became the first man in Oakland, California, to be arrested for not wearing a mask. He was released on bail, although similar scofflaws in San Francisco had been sentenced to up to 10 days in jail. (Departments donated revenue from fines to the Red Cross.)

“This is only the beginning,” said the chief of police, according to the Oakland Tribune. “We are going to enforce this mask ordinance if we have to pack the city jail with people. This epidemic is too serious to be taken as a joke, and men arrested … will find that it’s no laughing matter when they face the police judges.”

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Nonpharmaceutical Measures for Pandemic Influenza in Nonhealthcare Settings—Personal Protective and Environmental Measures


Disposable medical masks (also known as surgical masks) are loose-fitting devices that were designed to be worn by medical personnel to protect accidental contamination of patient wounds, and to protect the wearer against splashes or sprays of bodily fluids (36). There is limited evidence for their effectiveness in preventing influenza virus transmission either when worn by the infected person for source control or when worn by uninfected persons to reduce exposure. Our systematic review found no significant effect of face masks on transmission of laboratory-confirmed influenza.

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