A cyclospora outbreak tracked by the CDC has grown to nine states, with four newly linked states joining five already affected, according to CNBC.
Key facts
- The CDC says the cyclospora outbreak now affects nine states.
- Four newly linked states are Illinois, Kansas, Oklahoma and Pennsylvania.
- They join Indiana, Kentucky, Ohio, West Virginia and Michigan.
- Michigan has been described as hard-hit.
- The update was reported by CNBC on July 24, 2026.
A cyclospora outbreak monitored by the Centers for Disease Control and Prevention has expanded to nine states, according to CNBC.
The four newly linked states are Illinois, Kansas, Oklahoma and Pennsylvania, CNBC reported.
Those states join five that were already connected to the outbreak: Indiana, Kentucky, Ohio, West Virginia and Michigan, according to the report.
Michigan has been described as hard-hit, CNBC said, indicating a heavier concentration of cases in that state compared with the others linked to the outbreak.
The report reflects the CDC’s ongoing tracking of the outbreak as additional states are connected to the illness.
Why it matters
Cyclospora outbreaks can spread across multiple states through contaminated food, and public health tracking helps identify where illnesses are occurring. Knowing which states are affected can help residents and health providers stay alert to symptoms and seek care.
Frequently asked questions
Which states are part of the cyclospora outbreak?
According to CNBC, the outbreak spans nine states: Illinois, Kansas, Oklahoma, Pennsylvania, Indiana, Kentucky, Ohio, West Virginia and Michigan.
Which states were newly added to the outbreak?
CNBC reported that the four newly linked states are Illinois, Kansas, Oklahoma and Pennsylvania.
Which state has been hit hardest?
Michigan has been described as hard-hit, according to CNBC.