Massachusetts sees surge in cyclospora cases linked to lettuce

This summer, Massachusetts has experienced a notable increase in cyclospora cases, with over 100 reported by the state Department of Public Health. The rise began in May and peaked in July, with some cases linked to contaminated lettuce. Health officials are urging the public to report any illnesses after eating at restaurants, while emphasizing the importance of food safety practices.

Massachusetts sees surge in cyclospora cases linked to lettuce
1 source
science Published Aug 5, 2026

Topic overview

In brief

  • Massachusetts has reported over 100 cases of cyclospora this summer, with a notable increase in July.
  • Some cases have been linked to contaminated lettuce from Taylor Farms, prompting a recall.
  • Health officials are monitoring the situation and encouraging reporting of illnesses related to food consumption.

Summary

In Massachusetts, the summer of 2023 has been marked by a significant increase in cyclospora cases, with the state Department of Public Health reporting over 100 infections. The rise in cases began with nine reported in May, followed by 32 in June, and culminating in 104 cases in July. The outbreak has raised concerns as some of these illnesses have been linked to contaminated lettuce, specifically products from Taylor Farms that were recalled and sent to food service locations in the state. While the Department of Public Health has indicated that there is no evidence of large outbreaks within Massachusetts, they have noted a few small clusters of cases among residents that appear to be associated with the lettuce. The situation is further complicated by the fact that cyclospora, a stomach parasite, can lead to severe gastrointestinal symptoms, including watery diarrhea, which can last for weeks if untreated. The Centers for Disease Control and Prevention has advised the public to be cautious, emphasizing the importance of washing hands before handling food and ensuring that all fruits and vegetables are thoroughly washed. As the outbreak continues, health officials are encouraging anyone who becomes ill after eating at restaurants or other public venues to report their symptoms online. Experts believe that the outbreak may be starting to wane, but delays in reporting could mean that more cases are still being identified. The situation in Massachusetts reflects a broader trend, as thousands of people across the country have been affected by cyclospora this year, with some states experiencing more severe outbreaks, including Michigan, where over 11,000 individuals have fallen ill and two deaths have been reported. The Department of Public Health has reassured the public that while the number of cases is higher than usual for this time of year, it remains within the historical range for the state.

Key entities

How Mestios works We aggregate coverage, extract key information, and use AI to summarize and compare perspectives. Learn more

Updated Aug 5, 2026

AI-generated summary. Please verify important information from original sources.