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NORTH TEXAS (CBSDFW.COM) – Cyclospora is making people sick across Texas. The parasite is causing intestinal illnesses in the Lone Star State for the third summer in a row.

The state health department is telling doctors and other healthcare providers to be on the lookout for signs of the foodborne illnesses.

So far, 42 cases of cyclosporiasis have appeared in Texas in the last week — 15 of those cases were in Travis County alone.

People can become infected with cyclospora by eating fresh fruits or vegetables contaminated with the microscopic Cyclospora cayetanensis parasite.

Cyclospora symptoms include diarrhea, loss of appetite, stomach cramps, nausea and fatigue. To prevent getting the infection, people are being asked to thoroughly wash produce.

Health officials aren’t sure of the source for this most recent outbreak, but in the past cyclosporiasis has been linked to imported produce, like berries and leafy greens. In 2013, more than 270 people across Texans were infected. That outbreak was linked to fresh cilantro, bagged salad mix, raspberries and basil.

So far Tarrant County Health has had no cases reported. We’re still waiting to hear from health departments in Dallas, Denton, Collin and other counties.

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