Which hepatitis can become chronic?

Which hepatitis can become chronic?

• A. Hepatitis A
• B. Hepatitis B, C, and D
• C. Hepatitis E
• D. Hepatitis G

Answer: (B)

Chronic hepatitis means the infection persists and liver inflammation continues for six months or longer due to ongoing viral replication. Not all hepatitis viruses behave the same way in this regard. Hepatitis B can establish a long-lasting infection because its DNA genome allows persistence of viral templates in liver cells, which can keep producing virus over time. The chance of becoming chronic is especially high if infection occurs in infancy or early childhood, but adults can also develop chronic HBV. Hepatitis C has a high tendency to become chronic because many people fail to clear the virus after acute infection, leading to ongoing liver inflammation, potential progression to fibrosis and cirrhosis, and sometimes hepatocellular carcinoma over years. Hepatitis D requires hepatitis B to replicate, so when HBV is present, this coinfection or superinfection often leads to more severe disease and can become chronic in the setting of persistent HBV activity. In contrast, hepatitis A and hepatitis E typically cause acute, self-limited illness in people with normal immune systems, so chronic infection is not expected. Hepatitis G is not classically linked to chronic hepatitis in the same way as B, C, or D. Thus, the viruses capable of becoming chronic are hepatitis B, hepatitis C, and hepatitis D.

Chronic hepatitis means the infection persists and liver inflammation continues for six months or longer due to ongoing viral replication. Not all hepatitis viruses behave the same way in this regard.

Hepatitis B can establish a long-lasting infection because its DNA genome allows persistence of viral templates in liver cells, which can keep producing virus over time. The chance of becoming chronic is especially high if infection occurs in infancy or early childhood, but adults can also develop chronic HBV.

Hepatitis C has a high tendency to become chronic because many people fail to clear the virus after acute infection, leading to ongoing liver inflammation, potential progression to fibrosis and cirrhosis, and sometimes hepatocellular carcinoma over years.

Hepatitis D requires hepatitis B to replicate, so when HBV is present, this coinfection or superinfection often leads to more severe disease and can become chronic in the setting of persistent HBV activity.

In contrast, hepatitis A and hepatitis E typically cause acute, self-limited illness in people with normal immune systems, so chronic infection is not expected. Hepatitis G is not classically linked to chronic hepatitis in the same way as B, C, or D.

Thus, the viruses capable of becoming chronic are hepatitis B, hepatitis C, and hepatitis D.