Short Stuff: Cyclospora

Cyclosporiasis, a food-borne illness caused by a resilient protozoan parasite, recently triggered the largest outbreak in human history, sickening over 28,000 people in the United States. Unlike common bacteria or viruses, this parasite survives in water supplies and hides within the crevices of produce like lettuce and berries. The surge in cases stems from a combination of climate change, which expands the parasite's tropical range, and reduced federal funding for critical food safety surveillance programs. Furthermore, the consolidation of large-scale agriculture and the widespread practice of using treated sewage water for crop irrigation facilitate the rapid transmission of the pathogen. Because the parasite is resistant to standard washing, preventing infection requires thorough cooking or avoiding high-risk produce. This outbreak highlights significant vulnerabilities in the national food safety network and underscores the urgent need for robust public health oversight and stricter irrigation regulations.