
Arlington and Northern Virginia are experiencing a possible outbreak of cases from a particular foodborne illness.
Dozens people in the region are suspected of having contracted a gastrointestinal illness called Cyclosporiasis, according to a spokeswoman for the Virginia Department of Health. The outbreak involves “two large businesses” where more than 40 people were sickened, possibly with Cyclosporiasis, as well as 15 confirmed cases of the disease, officials say.
“A food or water source of this outbreak has not yet been identified, and the investigation is ongoing,” said the state health department.
“Cyclosporiasis is an intestinal illness caused by a microscopic parasite,” the department noted in a press release today (Tuesday.) “People can become infected by consuming food or water contaminated with feces or stool that contains the parasite.”
The 15 confirmed cases of people infected with Cyclospora since mid-June compares to eight cases in Northern Virginia by this time last year.
The affected area includes Arlington, Alexandria, Fairfax County and Falls Church.
“Arlington County has… experienced an increase in cases of illness due to Cyclospora,” confirmed epidemiologist Colleen Ryan Smith of Arlington’s Department of Human Services.
“The increase in Arlington… has contributed to the increase in cases noted for Northern Virginia,” added Smith, who said that “specific counts of cases by locality [are] not possible due to patient privacy and confidentiality considerations.”
Officials said they could also not identify the “two large businesses” where dozens were sickened.
Symptoms can begin one week after exposure to the parasite, and typically include explosive diarrhea, stomach cramps, nausea, aching muscles, and a low-grade fever. Symptoms can last days or a month for some, but others can be a carrier of the parasite and experience no symptoms.
Those afflicted can only be diagnosed by a lab test ordered by a doctor.

Health officials have also reported 90 cases of Cyclospora in New York City since January, and over 100 cases in Massachusetts since May. In both areas, the number of cases is approximately three times the normal number officials usually see in a year, and the cause is not yet known.
Officials in all three locales say they are still investigating the cause of the outbreak. Previous outbreaks were linked to contaminated produce.
The full press release is below, after the jump.
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