US reports first two deaths linked to ‘explosive diarrhoea’ outbreak

Michigan health officials confirmed the first two deaths linked to cyclospora, a parasitic infection that spreads through contaminated food and water and can cause severe diarrhoea. The victims had significant underlying health conditions that likely worsened the illness and dehydration.

The outbreak now spans 45 states, with nearly 7,000 laboratory‑confirmed cases nationwide. Michigan remains the epicentre, reporting over 11,000 cases and 193 hospitalisations, though many are not laboratory confirmed.

Cyclospora is a heat‑loving parasite transmitted through fecal contamination, often arriving on fruits or vegetables irrigated with polluted water. The CDC recommends washing all produce under running water—even pre‑washed items—yet warns that washing alone may not remove the parasite. Cooking produce to at least 70 °C (158 °F) can effectively kill it.

The underlying cause of the widespread outbreak has been linked to lettuce imported from Taylor Farms in central Mexico. In response, Taco Bell removed the product from its menu and Taylor Farms voluntarily recalled the contaminated lettuce batch.

UK health officials caution travellers who may have contracted the parasite during visits to affected countries.