Nationwide Parasite Outbreak Leads to Over 3,000 Diarrhea Cases

WHO:

CNN - The parasite involved is cyclospora.

CNN - The US Centers for Disease Control and Prevention (CDC) is monitoring the outbreak.

WHAT:

CNN - Ohio has reported 434 cases since June 1, with at least 28 hospitalizations.

CNN - The CDC's national count is 843 confirmed cases since May 1, which is lower than state counts while cases undergo further analysis.

NBC News - Nearly 400 New Yorkers have caught a form of food poisoning linked to fresh produce.

ABC News - Reported cases of cyclosporiasis in Michigan have surpassed 2,600, according to the state's health department.

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

NY Post - At least 17 reported cases of cyclosporiasis have been identified in Long Island, New York.

WTNH - As of July 13, 2026, Connecticut has confirmed 35 cases of cyclosporiasis, nearly double the 19 cases reported at the same time last year.

WTNH - Michigan's reported cases of cyclosporiasis have surpassed 2,600, according to the state's health department.

NY Post - At least 17 reported cases of cyclosporiasis have been identified in Long Island, New York.

WTNH - Thirty-five cases of cyclosporiasis have been confirmed in Connecticut, nearly double the 19 cases reported at this time last year.

NY Post - At least 17 reported cases of the parasite have been identified in Long Island, New York.

WTNH - Thirty-five cases of cyclosporiasis have been confirmed in Connecticut, nearly double the 19 cases reported at this time last year.

Reddit Conspiracy - As of July 13, 2026, news media outlets have reported 32 states with parasitic infection cases.

CNN - The outbreak of diarrhea caused by cyclospora has risen to more than 3,000 cases.

CNN - Michigan reported 2,640 cases, including 44 hospitalizations.

CNN - Ohio has reported 434 cases since June 1, with at least 28 hospitalizations.

CNN - As of July 10, 31 states have reported cases to the CDC.

CNN - The CDC's national count is 843 confirmed cases since May 1, which is lower than state counts.

WHERE:

CNN - The outbreak has affected more than 30 states across the country.

NBC News - The outbreak has affected more than half of the United States.

NY Post - The outbreak has affected Long Island, New York, with at least 17 reported cases.

Reddit Conspiracy - News media outlets have reported 32 states with parasitic infection cases as of July 13, 2026.

CNN - The outbreak is primarily affecting Michigan and Ohio.

CNN - 31 states have reported cases to the CDC.

WHEN:

CNN - The outbreak has been ongoing since at least May 1.

CNN - Ohio's reported cases began on June 1.

CNN - The CDC reported an increase in cases in the last two weeks compared to the same period in 2025.

WHY:

CNN - The source of the cyclosporiasis cases has not yet been determined by state and federal investigators.

CNN - Cyclosporiasis is typically contracted by consuming contaminated food or water.

HOW:

CNN - Treatment for cyclosporiasis involves seven to 10 days of the combination antibiotic sulfamethoxazole-trimethoprim, which is sold as Bactrim or Septra.

NY Post - The illness caused by Cyclospora is known to cause "explosive diarrhea."

CNN - People become ill by eating or drinking something contaminated several weeks prior, usually fresh produce or water from swimming pools.

CNN - Treatment for cyclosporiasis involves seven to 10 days of the antibiotic sulfamethoxazole-trimethoprim, sold as Bactrim or Septra.

CNN - To reduce the risk of infection, people are advised to thoroughly wash produce, cook fruits and vegetables, and consider avoiding recreational water.

(UPDATED July 14, 2026 17:21 UTC)

Ohio has reported 434 cases of cyclosporiasis since June 1, with at least 28 hospitalizations, while the CDC's national count stands at 843 confirmed cases since May 1, which is lower than state counts as they undergo further analysis. The outbreak has impacted more than 30 states across the country. Treatment for this infection typically involves a course of seven to ten days of the combination antibiotic sulfamethoxazole-trimethoprim, commonly known as Bactrim or Septra.

(UPDATED July 14, 2026 14:32 UTC)

Nearly 400 New Yorkers have reported cases of food poisoning linked to fresh produce, according to NBC News. This outbreak has now spread to more than half of the United States, raising concerns about food safety nationwide. Health officials are urging consumers to be cautious and stay informed as they investigate the source of the contamination.

(UPDATED July 14, 2026 12:24 UTC)

Reports indicate that cases of cyclosporiasis in Michigan have now exceeded 2,600, as confirmed by the state's health department. The fast-moving stomach parasite Cyclospora is spreading rapidly across the country, affecting thousands of Americans in more than 30 states, with at least 17 cases identified in Long Island, New York. This illness is known for causing "explosive diarrhea," raising concerns among health officials as the outbreak continues to grow.

(UPDATED July 14, 2026 09:32 UTC)

Connecticut has confirmed 35 cases of cyclosporiasis, nearly double the 19 cases reported at the same time last year, while Michigan's reported cases have surpassed 2,600, according to the state's health department. In Long Island, New York, at least 17 cases have been identified. Overall, news media outlets have reported cases of this parasitic infection in 32 states.

(UPDATED July 13, 2026 22:15 UTC)

Health officials have confirmed thirty-five cases of cyclosporiasis in Connecticut, nearly double the nineteen cases reported at this time last year. In addition, at least seventeen cases of the parasite have been identified in Long Island, New York. Authorities are urging residents to remain vigilant and take necessary precautions to avoid infection.

(UPDATED July 13, 2026 19:22 UTC)

Thirty-five cases of cyclosporiasis have been confirmed in Connecticut, marking a significant increase from the 19 cases reported during the same period last year. Health officials are urging residents to take precautions to prevent further spread of the infection. As the situation develops, more information will be provided to the public.

(UPDATED July 13, 2026 18:28 UTC)

News media outlets have reported that 32 states are currently experiencing cases of parasitic infections. This alarming development has caught the attention of health officials across the country. As the situation unfolds, experts are urging the public to stay informed and take necessary precautions.

(UPDATED July 13, 2026 17:37 UTC)

The outbreak of diarrhea caused by the parasite cyclospora has now exceeded 3,000 cases, with Michigan reporting 2,640 of those, including 44 hospitalizations, while Ohio has seen 434 cases since June 1, with at least 28 hospitalizations. The CDC is currently monitoring the situation, which has been ongoing since at least May 1, and 31 states have reported cases, although the source of the infections remains undetermined. To reduce the risk of infection, health officials recommend thoroughly washing produce, cooking fruits and vegetables, and avoiding recreational water.