Hepatitis E virus (HEV) is well-known to cause endemic outbreaks of hepatitis in tropical countries, mostly caused by HEV genotypes 1 or 2 and transmitted from humans to humans via the fecal-oral route. In contrast, HEV genotypes 3 or 4 are commonly encountered as sporadic cases in a non-endemic setting; these autochthonous cases are transmitted from animals to humans and commonly affect elderly male subjects. We report a five-month-old caucasian girl presenting with diarrhea, emesis, and elevated ALT. Surprisingly, acute infection with Hepatitis E virus (HEV) genotype 3 was laboratory-confirmed by reverse transcriptase polymerase chain reaction (RT-PCR) and sequencing. Thirteen months later, RT-PCR for HEV from stool tested negative whereas anti-HEV IgG in serum tested positive. Neither HEV RNA nor anti-HEV antibodies could be detected in stool or serum of the parents. To our knowledge, this is the first pediatric case of a HEV infection in Germany. Thus, HEV should be included into the differential diagnosis of pediatric infectious liver and bowel disease.
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