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What we know about the cyclosporiasis outbreak as cases rise across dozens of states

The cyclosporiasis parasite has sickened thousands of people across more than 30 states and federal officials still don't know the source. CBS News medical contributor Dr. Celine Gounder explains what we know and how to protect yourself.

Published July 15, 2026, 1:17 PM
Updated July 15, 2026, 1:40 PM4.4K
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What we know about the cyclosporiasis outbreak as cases rise across dozens of states

The cyclosporiasis parasite has sickened thousands of people across more than 30 states and federal officials still don't know the source. CBS News medical contributor Dr. Celine Gounder explains what we know and how to protect yourself.

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