Hepatitis E virus (HEV) is an enteric RNA virus causing acute infectious liver injury. In this section, we will analyze the morphology of the pathogen, its life cycle, and the mechanisms of hepatocyte penetration.
The material covers the fecal-oral transmission mechanism, waterborne outbreaks of the infection, and the zoonotic potential of the virus (transmission from pigs and other animals). Special attention is paid to modern laboratory diagnostic methods, including antibody marker detection (ELISA) and viral RNA detection (PCR).
In microbiology classes and exams, professors most frequently ask about one key clinical and pathogenetic feature of HEV: why this virus causes severe fulminant hepatitis with high mortality in pregnant women (especially in the third trimester). It is also important to be able to differentiate it from hepatitis A virus — pay attention to differences in taxonomy, genome structure, and natural reservoirs of the infection.