Guillain barre syndrome during preicteric
phase of acute type B viral hepatitis.
Acute symptomatic viral hepatitis can be divided into three phases: the prodromal or preicteric
period, the icterus period, and the convalescent period.
The onset of symptoms occurs months after exposure; the incubation period is 120 days on average (range, 45 to 160 days). The clinical course of acute HBV infection has three phases: preicteric
, icteric, and convalescent.