In the USA, an outbreak of Cyclospora cayetanensis infection is being investigated

• In May 1, 145 cases of cyclospora infection were reported in 17 U.S. states, with at least 20 people hospitalized and no deaths reported.
• The CDC says the infection is likely spread through contaminated food in the United States, and that it is not believed to be related to person-to-person transmission.
• In Michigan, from April 22, 2026, 170 cases were reported, while the infection was not identified in any other; the investigation continues.

In the United States, health authorities are investigating an outbreak of Cyclospora cayetanensis infection, which may have affected as many as 20 people. According to the CDC, as of today, cases of infection have been reported in 17 states, with at least 20 people hospitalized and no deaths reported.

According to information published by the U.S. Centers for Disease Control and Prevention, as of May 1, cases of cyclospora infection have been reported in 145 people across 17 U.S. states. It is believed that at least 20 people were hospitalized, and there have been no deaths.

According to the materials, the New York has found 31–80 cases, while Illinois and Texas have reported 11–30 cases each; in the remaining states, the number of cases is 1–10. The CDC also warns of possible outbreaks.

More information is available about the situation in Michigan. According to Michigan Department of Health and Human Services data, as of April 22, 2026, Michigan has reported 170 cases of cyclospora infection, with 150 of them confirmed. The materials also note that Michigan has reported 50 cases in the past week, and that the number of cases is still rising; however, the infection is not identified.

The materials also state that the CDC says the infection is spread through contaminated food in the United States, and that it is not believed to be caused by person-to-person transmission. According to the CDC, the outbreak is expected to continue and the number of cases may increase.

Cyclospora season in the United States: According to CDC data, cases of infection are more likely to occur during the warmer months. According to the materials, the CDC also notes that proper hygiene and food safety measures can help reduce the risk of infection.

Tags: Well-being/Research/USA