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Diarrhea-causing parasite that can contaminate raw produce causing misery across several states | CNN

Summer is peak season for hot weather delights like fresh berries and salad greens, but for now, you may want to consider cooking or at least thoroughly washing raw fruits and veggies. A parasite called Cyclospora, which can contaminate raw produce and causes ferocious and long-lasting bouts of diarrheal illness, is making people sick across several states. Michigan, which typically identifies about 50 cases of cyclosporiasis in a year, has reported almost 600 cases as of July 4, according to the state’s Department of Health and Human Services. New York state, excluding New York City, has seen 107 cases, since May 1. It typically logs 500 to 700 cases statewide each year, according to the New York State Department of Health. The US Centers for Disease Control and Prevention says it’s typical for case counts to rise in the summer. Nationwide, 145 cases were reported by 17 states between May 1 and June 16, and at least 20 of those have been hospitalized, according to the CDC. Michigan’s recent cases are not included in CDC’s total. Federal and state health officials say there is no evidence of a single multistate Cyclospora outbreak linking all cases. Investigations to identi

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Jul 17, 2026
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Jul 17, 2026·The GuardianT2 · Outlet report
What is cyclosporiasis, the parasitic illness causing ‘explosive’ diarrhea?

Illness surging in Michigan and other US states is rarely life-threatening, CDC says – but it can have severe effects CDC investigates parasite that’s caused cases of ‘explosive’ diarrhea in 18 US states Cases of cyclosporiasis –…

Read original at The Guardian →
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4 updates
Jul 17, 2026·The GuardianT2 · Outlet reportLATEST
What is cyclosporiasis, the parasitic illness causing ‘explosive’ diarrhea?

Illness surging in Michigan and other US states is rarely life-threatening, CDC says – but it can have severe effects CDC investigates parasite that’s caused cases of ‘explosive’ diarrhea in 18 US states Cases…

Read original at The Guardian →
Jul 13, 2026·CNNT2 · Outlet reportKEY MOMENT
Michigan says diarrhea outbreak may be linked to lettuce, salad greens as cases rise above 3,000 | CNN

An outbreak of diarrhea caused by the parasite cyclospora has risen to more than 3,000 cases in Michigan and Ohio, and the ongoing investigation suggests lettuce or salad greens may be the source. However, Michigan…

Read original at CNN →
Jul 6, 2026·GizmodoT2 · Outlet reportKEY MOMENT
Hundreds of New Cases Reported as the Explosive Diarrhea Outbreak Gets Worse

A foodborne parasitic disease that can cause explosive diarrhea is surging in some parts of the country. Federal and local health officials in 18 states have documented a recent uptick in cases of cyclosporiasis. In…

Read original at Gizmodo →
Jul 3, 2026·CNNT2 · Outlet reportOPENING
Diarrhea-causing parasite that can contaminate raw produce causing misery across several states | CNN

Summer is peak season for hot weather delights like fresh berries and salad greens, but for now, you may want to consider cooking or at least thoroughly washing raw fruits and veggies. A parasite called Cyclospora,…

Read original at CNN →

Sources & evidence (4)

What this story stands on. Tier 0 is a primary record or the subject's own words; higher tiers must be attributed, never stated as bare fact.

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T2 · Outlet reportThe GuardianJul 17, 2026

Illness surging in Michigan and other US states is rarely life-threatening, CDC says – but it can have severe effects CDC investigates parasite that’s caused cases of ‘explosive’ diarrhea in 18 US states Cases of cyclosporiasis –…

View source →
T2 · Outlet reportCNNJul 13, 2026

An outbreak of diarrhea caused by the parasite cyclospora has risen to more than 3,000 cases in Michigan and Ohio, and the ongoing investigation suggests lettuce or salad greens may be the source. However, Michigan health officials said…

View source →
T2 · Outlet reportGizmodoJul 6, 2026

A foodborne parasitic disease that can cause explosive diarrhea is surging in some parts of the country. Federal and local health officials in 18 states have documented a recent uptick in cases of cyclosporiasis. In Michigan, hundreds of…

View source →
T2 · Outlet reportCNNJul 3, 2026

Summer is peak season for hot weather delights like fresh berries and salad greens, but for now, you may want to consider cooking or at least thoroughly washing raw fruits and veggies. A parasite called Cyclospora, which can contaminate…

View source →

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