The San Diego Health and Human Services Agency and County Department of Environmental Health are investigating six cases of hepatitis A linked to a La Mesa Chipotle restaurant. …

Hepatitis A is a result of poor hygiene. Health officials say that victims are exposed when an individual consumes water or food contaminated with the stool of someone with the virus.

These hepatitis A cases are a weekly occurrence in the U.S. A food worker parties in Mexico or the Dominican or Honduras, where hepatitis A is endemic. Food worker comes home, is fine for two weeks, then spends the next two weeks crapping out virus. And unless food worker  is really diligent about handwashing, she’s spreading virus-containing poop on food — especially fresh produce or salads. After four weeks, food worker turns yellow and goes to the doctor where a diagnosis is made. Then the clinics start. In this case, a food worker has not been identified as the source — yet.

Get vaccinated for hepatitis A. And dude, wash your damn hands.