The first civilian influenza cases appeared in Los Angeles
On Sept. 22, 1918, the first civilian cases in Los Angeles appeared, although influenza was not made a reportable disease in California until September 27. Amongst these first cases were 55 students at Polytechnic High School.
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Source: Influenza Encyclopedia, University of Michigan Center for the History of Medicine
Credit: Courtesy University of Michigan Center for the History of Medicine.
