viral hepatitis types

Question 1

Hepatitis A

Answer 1

Transmission: fecal-oral
Vaccine: yes
Immunoglobulin: yes, within two weeks
Dx: Anti-HAV; IgM = current, IgG = immune
Chronic: no
Tx: rest/support

Question 2

Hepatitis B

Answer 2

Transmission: blood
Vaccine: yes
Immunoglobulin: yes, within 24 hrs
Dx: HBsAg = infection; anti-HBs = recovery
Chronic: yes
Tx: acute = rest and support; chronic = antivirals

Question 3

Hepatitis C

Answer 3

Transmission: blood
Vaccine: no
Immunoglobulin: no
Dx: anti-HCV (4+ wks into infection)
Chronic: yes
Tx: acute - rest and support; chronic - antivirals

Question 4

Hepatitis D

Answer 4

Transmission: blood
Vaccine: no (protected by Hep B vax)
Immunoglobulin: no
Dx: HDV Ag = early; anti-HDV = past or present
Chronic: yes
Tx: antivirals

Question 5

Hepatitis E

Answer 5

Transmission: fecal-oral
Vaccine: none
Immunoglobulin: none
Dx: anti-HEV; IgM and IgG
Chronic: no
Tx: rest/support