Coverage dated July 10, 2026 to July 17, 2026

More than 3,300 cases reported in Michigan parasite outbreak

Headline from BNO News, from the development of Jul 14, 2026

Newest development Jul 15, 2026 · 2 reportsCyclospora cases rise across the U.S., how to keep clean during the outbreak

More than 3,300 people have been infected in a rapidly growing cyclosporiasis outbreak in Michigan that health officials believe may be linked to lettuce or salad greens. At least 44 people have been hospitalized.

BNO News's own description from its feed. We collect headlines and these descriptions, not full articles; read the original reporting below.

Earlier updates in this story

Developments in this update

5 dated developments, oldest first, newest marked. Each is named by one outlet's own headline; open its reports to see every outlet that covered it.

  1. 35 cases of diarrhea-causing parasite confirmed in Connecticut: CT DPH

    Headline from WTNH New Haven ·

  2. Outbreak of diarrhea from parasite expands to more states as US cases soar beyond last year’s level

    Headline from KESQ Palm Springs ·

  3. Names this update

    More than 3,300 cases reported in Michigan parasite outbreak

    Headline from BNO News ·

  4. Diarrhea-causing parasite case confirmed in El Paso

    Headline from Border Report ·

  5. Newest

    Cyclospora cases rise across the U.S., how to keep clean during the outbreak

    Headline from MyStateline ·

5 reports not tied to one development ·

Read the reports

Reports & sources

48 articles, oldest first.

  1. CBS News

    Cyclosporiasis parasite cases found in 31 states (opens CBS News)

    Published

    CBS News's feed description

    Cases of cyclosporiasis, a disease caused by a microscopic parasite, are growing in 31 states, and health officials still haven't identified the exact source of the outbreak. Dr. Eric Ascher, a family medicine physician, joins "The Daily Report" to discuss the illness.

  2. Newsweek

    Map Shows 'Explosive' Diarrhea Hotspots as Cases Surge (opens Newsweek)

    Published

    Newsweek's feed description

    A rapid surge in cyclospora cases across multiple states has triggered a federal investigation into a potential food outbreak.

  3. KYMA Yuma

    Cyclosporiasis outbreak causing explosive diarrhea (opens KYMA Yuma)

    Published

    KYMA Yuma's feed description

    Health departments across the midwest are tracking an outbreak of cyclosporiasis, causing explosive diarrhea.

  4. New York Post

    How to avoid the ‘explosive diarrhea’ parasite that is wreaking intestinal havoc across the US (opens New York Post)

    Published

    New York Post's feed description

    The fast-moving stomach parasite Cyclospora is rapidly spreading across the country, sickening thousands of Americans across more than 30 states.

  5. The Conservative Brief

    Explosive Diarrhea Hype Masks Bigger Failure (opens The Conservative Brief)

    Published

    The Conservative Brief's feed description

    Every summer, cyclosporiasis quietly exposes how fragile our food safety systems are: a microscopic parasite linked to “explosive diarrhea” surges across dozens of states, media headlines shout “outbreak,” and yet investigators still cannot say which food is to blame—or even whether everyone is gett…

  6. KION Central Coast

    Outbreak of diarrhea caused by parasite jumps to 3,000 cases. Here’s why it’s so hard to identify the source (opens KION Central Coast)

    Published

    KION Central Coast's feed description

    By Brenda Goodman, CNN (CNN) — An outbreak of diarrhea caused by the parasite cyclospora has risen to more than 3,000 cases in Michigan and Ohio, and state health officials say they’re not close to identifying the source. Michigan reported 2,640 cases as of 9:30 a.m.

  7. WTNH New Haven

    35 cases of diarrhea-causing parasite confirmed in Connecticut: CT DPH (opens WTNH New Haven)

    Published

    WTNH New Haven's feed description

    HARTFORD, Conn. (WTNH) — Thirty-five cases of cyclosporiasis, an illness caused by a parasite that causes "explosive diarrhea," have been confirmed in Connecticut as of July 13, according to the Connecticut Department of Public Health.

  8. CBS 19 Tyler

    5 cases of 'explosive' diarrhea parasite reported in East Texas this summer so far (opens CBS 19 Tyler)

    Published

    CBS 19 Tyler's feed description

    Cyclospora cases are rising in East Texas, warns Northeast Public Health District. Linked to contaminated produce, the parasite causes severe diarrhea.

  9. The Guardian

    US outbreak of parasite causing ‘watery diarrhea’ rises to more than 2,800 cases (opens The Guardian)

    Published

    The Guardian's feed description

    Cyclosporiasis outbreak comes a year after Trump officials cut funding for state and local health departments What is cyclosporiasis, the parasitic illness causing ‘explosive’ diarrhea? State health officials in Michigan and Ohio are reporting thousands of cases of cyclosporiasis – a parasitic infec…

  10. UPI

    Parasite outbreak reaches 2,800 in U.S., causes ‘explosive’ diarrhea (opens UPI)

    Published

    UPI's feed description

    More than 2,800 cases of cyclospora infection have been reported, largely concentrated in Michigan, state health officials reported Monday.

  11. Pix11

    'Diarrhea parasite' cases in NY continues to rise: what to know (opens Pix11)

    Published

    Pix11's feed description

    NEW YORK (PIX11) — It's a serious digestive tract ailment whose number of cases has been most quickly growing in parts of the Midwest. However, the spike in documented cases of cyclosporiasis in the tri-state region, particularly in New York and New Jersey, is so high that it's now getting a lot of …

  12. FOX 61 Hartford

    Connecticut cases of intestinal illness from parasite now up to 35 this year (opens FOX 61 Hartford)

    Published

    FOX 61 Hartford's feed description

    Watery and sometimes explosive diarrhea is the most common symptom of cyclosporiasis, health officials say.

  13. WTNH New Haven

    How to protect yourself from the diarrhea-causing parasite as cases climb in Connecticut (opens WTNH New Haven)

    Published

    WTNH New Haven's feed description

    HARTFORD, Conn. (WTNH) -- Thirty-five cases of cyclosporiasis, an illness caused by a parasite that causes "explosive diarrhea," have been confirmed in Connecticut as of Monday, according to the Connecticut Department of Public Health.

  14. ABC 17 Mid-Missouri

    Outbreak of diarrhea from parasite expands to more states as US cases soar beyond last year’s level (opens ABC 17 Mid-Missouri)

    Published

    ABC 17 Mid-Missouri's feed description

    By Deidre McPhillips, CNN (CNN) — There have been 1,645 confirmed cases of cyclosporiasis acquired in the United States since May 1, and more than 5,100 additional cases are being investigated, the US Centers for Disease Control and Prevention said Tuesday — a sharp increase in cases compared with r…

  15. Foxla

    Cyclospora parasite causing 'explosive diarrhea' reaches California as US cases break records (opens Foxla)

    Published

    Foxla's feed description

    A record-shattering parasitic outbreak is sweeping the U.S ., putting California residents on high alert as they navigate peak summer produce season. While the California Department of Public Health reports that local cases are currently low and mostly tied to travel , the sheer scale of the nationw…

  16. 8 News Now Las Vegas

    Southern Nevada Health District says no local cases of diarrhea-causing parasite (opens 8 News Now Las Vegas)

    Published

    8 News Now Las Vegas's feed description

    The Southern Nevada Health District said there have not been any local cases of cyclosporiasis, a foodborne illness caused by a microscopic parasite.

  17. Sun Times

    Illinois reports 216 cases of cyclosporiasis, intestinal infection that causes 'explosive diarrhea' (opens Sun Times)

    Published

    Sun Times's feed description

    Illinois has confirmed 216 cases of the diarrhea-causing illness cyclosporiasis, the state’s public health department confirmed Tuesday. Of those 216, 18 people have been hospitalized statewide, according to the Illinois Department of Public Health.

  18. Cbs4indy

    200+ cases of explosive diarrhea illness cyclosporiasis reported in Indiana (opens Cbs4indy)

    Published

    Cbs4indy's feed description

    (WXIN/WTTV) — A parasitic illness that reportedly causes "explosive" diarrhea has now hit over 200 reported cases in the Hoosier State. Cyclosporiasis first began popping up in the United States in early May, according to the Centers for Disease Control and Prevention.

  19. Portland Press Herald

    Maine reporting 2 cases of cyclosporiasis, but they are not linked to the national outbreak (opens Portland Press Herald)

    Published

    Portland Press Herald's feed description

    The diarrhea-inducing disease caused by a microscopic parasite has spread to 34 states, federal officials said.

  20. KARK Little Rock

    Arkansas reports at least 10 'explosive' diarrhea-causing parasite cyclospora cases in 2026 (opens KARK Little Rock)

    Published

    KARK Little Rock's feed description

    The Arkansas Department of Health has confirmed 10 cases of cyclosporiasis in the state so far this year, with symptoms including diarrhea, loss of appetite, weight loss, and fever, and prevention through safe food-handling practices.

  21. KQED News

    Cyclosporiasis and the Bay Area: What to Know About the ‘Explosive Diarrhea’ Parasite Surging in the US (opens KQED News)

    Published

    KQED News's feed description

    Cases of a stomach parasite that causes abdominal pain and severe diarrhea have been rising in other states. How worried should you be in California?

  22. BNO News

    More than 3,300 cases reported in Michigan parasite outbreak (opens BNO News)

    Published

    BNO News's feed description

    More than 3,300 people have been infected in a rapidly growing cyclosporiasis outbreak in Michigan that health officials believe may be linked to lettuce or salad greens. At least 44 people have been hospitalized.

  23. NWA Home Page

    Arkansas reports 10 'explosive' diarrhea-causing parasite cyclospora cases in 2026 (opens NWA Home Page)

    Published

    NWA Home Page's feed description

    The Arkansas Department of Health has confirmed 10 cases of cyclosporiasis in the state so far this year, with symptoms including diarrhea, loss of appetite, weight loss, and fever, and prevention through safe food-handling practices.

  24. WWL New Orleans

    'Explosive' diarrhea parasite cases surge in Louisiana as possible cause identified (opens WWL New Orleans)

    Published

    WWL New Orleans's feed description

    36 cases of cyclosporiasis have been confirmed statewide so far this year, up from 23 cases reported just one week ago. Five people have been hospitalized.

  25. Aspen Times

    Parasite causing ‘explosive diarrhea’ not concerning for Pitkin County (opens Aspen Times)

    Published

    Aspen Times's feed description

    Amid concerns around a national cyclospora outbreak causing explosive diarrhea, Pitkin County Public Health is reassuring residents and visitors that this parasite is nothing new and nothing to be worried about.

Showing the first 25 of 34 headlines. ·

Identical headlines usually mean shared wire copy. They are counted as separate articles but are not independent confirmation.

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