Fact Check: Did making CDC cyclospora surveillance optional leave officials unable to identify the outbreak’s source?

Media Bias Fact Check (MBFC) publishes daily vetted fact checks from verified IFCN-approved sources. Each claim is independently reviewed for accuracy and context.


Claimant: Angela Alsobrooks (D)


Claim: “The CDC tracked Cyclospora for 28 years. RFK Jr. made that surveillance optional. Now thousands of Americans are sick and we don’t know where the outbreak began.”


Rating: MISLEADING


Explanation: FoodNet tracked cyclospora trends for decades, and participation became optional. However, experts said the change likely had little direct effect on identifying the current outbreak. Investigators linked many cases to iceberg lettuce from Mexico served at Taco Bell locations.


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Date: 07/31/2026


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Last Updated on July 31, 2026 by Media Bias Fact Check