HOPKINS COUNTY, Ky. (WKRC) — An outbreak of Giardia has begun to migrate across Kentucky, according to health officials.
A statement issued by Kentucky Public Health Monday states that officials are investigating a Giardia outbreak in Western Kentucky, with Hopkins County being the primary area affected.
As of July 21, 2025, there have been 66 laboratory-confirmed cases of Giardia reported across Hopkins, Muhlenberg and Webster Counties since May.
While the exact sources of the infection remain unidentified, numerous cases have been linked to dining at El Tapatio Mexican Cantina in Madisonville, Kentucky. The restaurant has been cooperating fully with health officials as the investigation continues.
Health officials are conducting environmental sampling to pinpoint potential sources of Giardia exposure.
Giardia is a parasite commonly found in untreated waters, such as streams, rivers, and lakes, and can spread through contaminated water, food, or surfaces.
Symptoms of Giardia typically appear one to three weeks after exposure and can include diarrhea, gas, stomach pain and fatigue. These symptoms can last for weeks. Young children, pregnant women, and individuals with weakened immune systems are at a higher risk for complications, including dehydration.
The Centers for Disease Control and Prevention (CDC) recommends prompt diagnosis, maintaining good hand hygiene, cleaning and disinfecting home environments and child care facilities and monitoring water quality in private wells to prevent and control Giardia outbreaks.
In Kentucky, approximately 100 to 300 cases of Giardia are reported annually, with a higher frequency during summer and early fall. The parasite is often linked to recreational water sources, such as lakes, rivers, and swimming pools.
Health officials advise those concerned about potential Giardia infection to consult their healthcare provider for testing or treatment options.
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