Hepatitis Infection Progression

Hepatitis A Characteristics

• The American College of Gastroenterology recommends recognizing Hepatitis A as an acute illness with a classic 4-phase progression, including an incubation period, prodromal phase, icteric phase, and convalescence, with complete recovery in the majority of patients 1
• Hepatitis A does not become chronic and has a low risk of complications, with a mortality rate of less than 1% 1

Hepatitis B Characteristics

• The European Association for the Study of the Liver recommends understanding Hepatitis B as a chronic infection with 5 distinct immunological phases, including an immune tolerance phase, immune clearance phase, inactive carrier phase, reactivation phase, and HBsAg-negative phase 2, 3, 4
• The progression of Hepatitis B is influenced by the host's immune response, with the risk of liver damage and cancer increasing with chronic infection 2, 3, 4

Hepatitis C Characteristics

• The American Association for the Study of Liver Diseases recommends recognizing Hepatitis C as a chronic infection with a continuous progression, without distinct immunological phases, and a high risk of liver damage and cancer 5, 6, 7, 8
• Hepatitis C has a high rate of chronicity, with 85% of infected individuals developing chronic infection, and a significant risk of liver cirrhosis and hepatocellular carcinoma 6, 7, 8

Key Differences Between Hepatitis Types

• Hepatitis A is an acute, self-limiting illness, while Hepatitis B and C can become chronic and lead to liver damage and cancer 1, 2, 3, 4, 5, 6, 7, 8
• The progression and outcomes of Hepatitis B and C are influenced by various factors, including the host's immune response, viral load, and presence of comorbidities 2, 3, 4, 5, 6, 7, 8