Hepatitis Viruses Flashcards
Which Hepatitis virus is the DNA virus?
Hepatitis-B
What is the reservoir of the Hepatitis-A?
Only Humans
Which hepatitis virus is RNA Picornavirus?
Hepatitis-A
How does Hepatitis-A transmitted?
Fecal= oral route = contaminated food,water, close contact
Blood exposure= drug injection, transfusion
What are the characteristics of Hepatitis-A?
Stable at acidic pH
Resistant to heat= bc naked
Inactivated by UV, formalin, HOCL
Hepatitis-A replicates in which tissue?
Hepatocytes
How does the detection of Hepatitis-A occur?
Anti-IgM
Anti-IgG= positive after a time
Which hepatitis virus is Hepadnvirus?
Hepatitis-B
What are the genes and the proteins of Hepatitis-B?
C = HBcAg, HBeAg
S=HBsAg
P= DNA polymerase
X= X protein
How does Hepatitis-B transmitted?
Blood =contaminated needles
Sexual
Perinatal
Orally
Which Hepatitis B antigen type not seen in the serum?
Only HBcAg (core antigen) bc it is in hepatocytes
Which Hepatitis has a high rate of mutation?
Hepatitis-C
What Hepatitis-C causes?
Infects hepatocytes
Liver damage
Clinical illness
Hepatitis-D multiple in which conditions?
In the presence of HBV
What is the antigen of Hepatitis-D?
Delta ag