Hepatitis A Outbreak Information

Pennsylvania is currently experiencing an outbreak of hepatitis A.

Hepatitis A is a highly contagious, vaccine preventable infection caused by the hepatitis A virus (HAV). It is spread via fecal-oral route, and is clinically indistinguishable from infections caused by hepatitis B or hepatitis C viruses. The incubation period for hepatitis A is long, between 15 and 50 days, and the average length of time between exposure and symptom onset is 28 days.

Large nationwide outbreaks have caused over 8,000 hospitalizations and 236 deaths. There is an upward trend in outbreak-associated cases of hepatitis A in Southeastern Pennsylvania.

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