Chronic hepatitis persistence threshold?

Chronic hepatitis persistence threshold?

• A. 6 months
• B. 3 months
• C. 12 months
• D. 24 months

Answer: (A)

Chronic hepatitis is defined by the persistence of infection and liver inflammation beyond the usual healing window. In practice, most acute viral hepatitis resolves within a few weeks to several months, so a six-month duration is used as the threshold to label the condition chronic. For hepatitis B, chronicity is indicated when the hepatitis B surface antigen (HBsAg) remains positive for more than six months. For hepatitis C, chronic infection is inferred if HCV RNA is detectable for more than six months after exposure. The other time frames—three months, one year, or two years—do not align with the standard cutoff for defining chronic hepatitis, even though disease duration can extend beyond six months.

Chronic hepatitis is defined by the persistence of infection and liver inflammation beyond the usual healing window. In practice, most acute viral hepatitis resolves within a few weeks to several months, so a six-month duration is used as the threshold to label the condition chronic. For hepatitis B, chronicity is indicated when the hepatitis B surface antigen (HBsAg) remains positive for more than six months. For hepatitis C, chronic infection is inferred if HCV RNA is detectable for more than six months after exposure. The other time frames—three months, one year, or two years—do not align with the standard cutoff for defining chronic hepatitis, even though disease duration can extend beyond six months.