Can you test positive for flu before symptoms?

Yes, it is possible to test positive for the flu before symptoms appear. Most healthy adults can infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick.

For more information please visit the Centers for Disease Control and Prevention.

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COVID-19

HIV

Flu A/B

Hepatitis C

Tuberculosis

C. Difficile

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COVID-19 │ HIV │ Flu A/B │ Hepatitis C │ Tuberculosis │ C. Difficile |