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1909 Pandemics & Diseases Events — Verified Historical Highlights

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1909 Pandemics & Diseases Events — Verified Historical Highlights | TakeMeBack.to

  • 20 Jun Typhoid Mary Mallon story revealed: On June 20, 1909, the case of Mary Mallon, known as 'Typhoid Mary,' was publicly revealed. Mallon was an asymptomatic carrier of typhoid fever, responsible for multiple outbreaks in New York City, leading to her isolation to prevent further transmission. source: cdc.gov

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