Hepatitis A Infection Typical Serological Course Symptoms Alt Titre Total anti HAV IgM anti-HAV Fecal HAWV 0 1 6 12 24 Months after exposureFecal HAV Symptoms 0 1 2 3 4 5 6 12 24 Hepatitis A Infection Total anti￾HAV Titre ALT IgM anti-HAV Months after exposure Typical Serological Course