Scores of people in the U.S. have been sickened by a parasite commonly linked to contaminated fresh produce that can cause weeks of watery diarrhea. But there are ways to protect yourself and still enjoy summer's bounty of fruits and vegetables.

The exact source of one of the nation's largest outbreaks in years of Cyclospora infections is still not known. And it can be hard to figure out what food sick people had in common because sometimes it's a single ingredient that might be common in multiple recipes -- like basil or cilantro.

Luckily, Cyclospora infections are generally treatable with antibiotics and rarely cause serious complications.

And there are ways to avoid getting it altogether.

Here are tips for reducing the risk: