Question

Differentiate the transmission modes of Hepatitis viruses and classify them according to their replication strategies.

Answer 1

A. Hepatitis A virus is present in the faeces of infected persons and is most often transmitted through consumption of contaminated water or food.

Hepatitis B virus - It is transmitted through the exposure to infective blood, semen, and other body fluids. It can also transmitted from infected mothers to infants at the time of birth .

Hepatitis C virus:It it transmitted through exposure to infective blood. This (transfusions of HCV-contaminated blood and blood products, contaminated injections during medical procedures etc)

Hepatitis D virus -infections occur only in those who are infected with hepatitis B.

Hepatitis E virus : It'll is transmitted through the consumption of contaminated water or food.

B. Hepatitis A - it is a hepatovirus, is a small, unenveloped symmetrical RNA virus.

Hepatitis B-It included in hepadnavirus group, double-stranded DNA viruses which replicate, unusually, by reverse transcription.

Hepatitis C-it is an enveloped single-stranded RNA virus.

Hepatitis D-It is an unusual, single-stranded, circular RNA virus .

Hepatitis E-non-enveloped, single-stranded RNA.