CTK Rota/Adeno Ag Hızlı TestViral hepatitis is most commonly caused by the hepatitis A, B and C viruses, but it can also be caused by infection with hepatitis E virus. The severity of disease varies depending on the causative virus; the first step in diagnosing hepatitis infections is to screen for the type of virus and when it was contracted using highly sensitive immunoassays against virus specific antibodies. Early and effective detection of hepatitis B or C infections is critical for initiating early treatment which may yield a better prognosis by enabling medical treatment to be directed accordingly to inhibit disease progression. Distinguishing the etiological agent is of high importance in HAV and HEV infections because although the clinical presentations are similar, HAV is usually self-limiting while HEV is more severe resulting in a 1-2% death rate and is often associated with fulminant hepatic failure and subsequent high mortality rates in pregnant women.