Hepatitis B

Question 1

1. Describe the structure of hepatitis B
2. Name some important parts structural parts of hepatitis B

Answer 1

1.Smallest DNA with an envelope (capsid)
2.
Capsid (envelope)
Surface antigen
core antigen
DNA

Question 2

How is Hepatitis B transmitted ?

Answer 2

Intravenous drug users
sexually transmitted disease
mother to child

Question 3

Describe the replication of Hepatitis B

Answer 3

shows a unique mechanism in replication called reverse transcriptase

Question 4

what are some manifestations of Hepatitis B

Answer 4

Hepatocellular carcinoma
Spontanous pathogenic changes actives oncogenes and causes liver cancer
Liver fibrosis ——> necrosis

Question 5

How long is the incubation period of hepatitis B ?

Answer 5

30 to as long as 180 days

Question 6

Two types of Hepatitis B

Answer 6

Acute and chronic

Question 7

which particle of the virus shows up first in acute infections?

Answer 7

HBsAg

Question 8

HBsAg stands for ?

Answer 8

Hepatitis B “SURFACE” antigen

Question 9

Which part of the dane particle (hep B virus) will show next right after Acute infection HBsAg positive ?

Answer 9

HBcAg

core antigen will show up next; meaning the core “middle part of the virus is pooped out; so it will be revealed”

Question 10

How would Hepatitis B chronic infection be diagnosed ?

Answer 10

usually surface antigen have calmed down and positive core antigen shows with Antibodies