Michigan reports first deaths linked to cyclosporiasis outbreak in US

A cyclosporiasis outbreak in the United States has caused two deaths in Michigan, the state's health department said on Monday, according to Reuters. They are the first deaths reported in the US since cases of the infection began spreading nationwide in May.

The United States Centers for Disease Control and Prevention (CDC) confirmed the two deaths were linked to cyclosporiasis, an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis that can lead to diarrhea, stomach cramps and fatigue. The CDC also noted that both patients had serious underlying health conditions. 

Cyclosporiasis cases have continued to rise across the US in recent weeks. The CDC, the United States Food and Drug Administration (FDA), and public health authorities in several states are investigating a multistate outbreak linked to iceberg lettuce. The outbreak has been reported in nine states, including Michigan being the hardest-hit state.

Based on the latest data released by the Michigan Department of Health and Human Services, the state has reported 11,234 cyclosporiasis-linked cases by Monday, including 193 hospitalizations and two deaths.

An FDA investigation linked the outbreak to the recalled iceberg lettuce sourced from privately held Taylor Farms operations in central Mexico and served at Yum Brands-owned Taco Bell, Reuters reports on Monday. Meanwhile, the authorities are still seeking other potential sources.

Cyclosporiasis is generally not life-threatening. People can become infected by consuming contaminated food or water. Some infected people may have no symptoms, while others may experience watery diarrhea, frequent bowel movements, stomach cramps and nausea, according to the official website of the CDC. Without treatment, symptoms can last from several days to several months and may come and go.

The CDC recommends thoroughly washing hands with soap and water before handling produce. All produce should be washed under running water, including those labeled as pre-washed. However, since washing alone cannot guarantee the parasite's removal, the agency recommends to cook produce to a temperature of at least 70°C (158 °F).