Agent Name

Hepatitis B virus

Major Category

Biological Agents

Category

Infectious Agents

Comments

Chronic hepatitis B infection rates vary from highly endemic (>8% HBsAg prevalence) to intermediate (2% to 7%) to low. "Where endemicity is low (HBsAg prevalence <2%), most infections occur in young adults, especially through sexual contact and injection drug use." Patients with chronic infection have increased risk for cirrhosis and liver cancer. [CCDM, p. 258-9

Adverse Effects
IARC Carcinogen

Known Carcinogen

Links to Other NLM Databases
Toxicity Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: