In Brief

Foodborne Parasite Sickens 100 in Massachusetts. No Source Has Been Found.

The parasite <em>Cyclospora</em> can cause intestinal illness. Above, an image taken with a microscope showing <em>Cyclospora</em> eggs (red) in a stool sample.
The parasite Cyclospora can cause intestinal illness. Above, an image taken with a microscope showing Cyclospora eggs (red) in a stool sample.
(Image credit: CDC/ DPDx - Melanie Moser)

Infections with an intestinal parasite have surged in Massachusetts in recent months, according to health officials.

Since May, more than 100 people in the state have been sickened by a parasite called Cyclospora, according to the Massachusetts Department of Public Health (DPH). This case count is much higher than usual; during the past three years, only 18 to 33 cases have been reported in the state each year.

Latest Videos From
Rachael Rettner
Contributor

Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.