Viral Hepatitis

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Hepatitis A, B, and C

Virus Hepatitis A Hepatitis B Hepatitis C
Transmission Route Faecal-oral Infected needle or blood, sexual contact Infected needle or blood, sexual contact
Incubation Time (acute infection) 15-50 days 45-160 days 14-180 days
Onset Sudden Either sudden or slow, unnoticed Usually slow, unnoticed
Severity Mild Occasionally severe Usually slow-developing and symptoms not specific or strong
Chronic form? No Yes Yes
Associated with other diseases? None Liver cancer, cirrhosis Liver cancer, cirrhosis
Vaccine available? Yes Yes No
Common treatment None Chronic form - interferon, lamivudine Chronic form - interferon (usually with ribavirin)