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Michigan's explosive outbreak of diarrheal parasite jumps to over 1,200 cases

9 July 2026 at 21:56

Cases of an explosive diarrheal parasite continue to skyrocket in Michigan, which is reporting 1,251 cases as of July 9. Of those, 44 were hospitalized. Meanwhile, across the border in Ohio, cases are also quickly rising, with news reports of a case total over 500.

The outbreak in Michigan began with two cases reported on June 22 and rose steeply at the start of July. The Michigan Department of Health and Human Services (MDHHS) reported 572 cases on July 4. On Wednesday, July 8, 239 cases were reported, the highest single-day tally so far. The current total of 1,251 cases includes 159 case reports received on July 9.

The epicenter of the outbreak is in the southeastern corner of the state, where health officials from multiple jurisdictions are working furiously to identify and interview cases to track the source, or sources, of the parasite, which spreads through food and water.

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Β© Getty | Grace Cary

Michigan sees explosive outbreak of diarrheal parasite with over 700 cases

7 July 2026 at 22:29

Cases of a diarrhea-causing intestinal parasite have exploded in Michigan over the last two weeks in an outbreak that still has no clear source.

As of July 6, the state has received reports of over 700 cases since June 22, along with 36 hospitalizations, the Michigan Department of Health and Human Services (MDHSS) told Ars Technica on Tuesday.

On June 30, the health department reported 170 cases, which rose to 572 on July 4.

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Β© CDC | Melanie Moser

Africa CDC confirms Marburg case in Uganda as Ebola outbreak rages

2 July 2026 at 16:30

Amid disease surveillance for the ongoing Ebola outbreak, Ugandan health authorities identified a case of Marburg virus disease in a one-and-a-half-year-old child, who has died, according to Africa Centers for Disease Control and Prevention. But Ugandan health officials appear reluctant to publicly disclose information about the case and its context.

Marburg virus is related to Ebolaviruses and causes similar hemorrhagic disease. Its transmission routes and prevention measures are likewise similar.

On Wednesday, Africa CDC told Reuters that no contacts of the deceased toddler had developed symptoms, and there were no other current active cases in the country, citing Ugandan health authorities. But when Reuters reached out to Uganda's health ministry, a spokesperson said he was not aware of a Marburg outbreak.

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Β© Getty | BADRU KATUMBA

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