Hepatitis

Question 1

Hepatitis G

Answer 1

ss+ nonsegmented RNA virus.

Question 2

Hepatitis A

Answer 2

ss+ RNA nonenveloped
transmitted fecal oral and has short incubation 2-8 weeks and presents with acute infection only
dx. Anti-HAV, vaccine, supportive care, pooled Immunoglobulins

Question 3

Hepatitis B

Answer 3

Hepadnaviridae, partially ds DNA, enveloped. Transmitted sexually and by blood and sexual contact. Long incubation, has acute and chronic infection.
Dx. serological markers,
tx. vaccine, drugs

Question 4

Hepatitis C

Answer 4

ss+ RNA enveloped transmitted by blood and sexual contact, long incubation and acute and chronic infection.

dx. AntiHCV antibody, RT-PCR.
tx. a-interferon, drugs, no vaccine

Question 5

Hepatitis D

Answer 5

ss-RNA, enveloped spread by blood or sexual contact, long incubation period with acute and chronic infection, only associated with Hep B, needs to borrow nucleocapsid coat.

Question 6

Hepatitis E

Answer 6

ss+ RNA, nonenveloped. Fecal oral transmission, short incubation with only an acute infection. dx based on anti HEV IgM, IgG, no therapy or vaccine