Yhn WarWar first seen 11 h ago, last 21 min ago, peak #3

Secret Cold War bioweapons test exposed millions in Bay Area

Original: The secret Cold War bioweapons test that exposed millions in the Bay Area

A newly resurfaced account details Operation Sea-Spray, a 1950 US Navy experiment in which Serratia marcescens bacteria were sprayed over San Francisco to test how vulnerable the city was to a biological attack. The tests exposed some 800,000 residents without their knowledge and were later linked to infections and at least one death, renewing debate over government accountability and consent.

Why now: The story is circulating widely because it reveals a little-known government experiment on an unwitting civilian population, touching on secrecy and public health concerns.

San FranciscoUS NavyOperation Sea-SpraySerratia marcescens

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• The secret Cold War bioweapons test that exposed millions in the Bay Area · bcaulfield · 22

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