2 died in a cyclospora outbreak in Michigan

Two people have died in a cyclospora outbreak in the US state Michigan.

These are the first deaths confirmed in the US related to the microscopic parasite.

The Michigan Department of Health and Human Services says both people had underlying health conditions that may have been impacted by the intestinal illness and dehydration.

The department says it would not provide additional information about the deaths.

Cyclospora is a microscopic, spherical parasite that commonly causes watery diarrhoea.

Outbreaks tend to occur most often in the late spring and summer but are rarely deadly.

US Federal health officials have identified lettuce from Mexico served at Taco Bell in nine states as a source of the widespread outbreak.

They say brands, restaurants, retailers, or distribution channels could be tied to the outbreak as the investigation continues.