MYCO & VIROLOGY L8 (Semis- Hepatitis Viridae) Flashcards
3 Possible Causes of Hepatitis
- Infectious Agents (virus, bacteria, parasite)
- Alcohol
- Drugs (Drug-induced hepatitis)
Primary Hepatitis (95%) includes:
Hepatitis A, B, C, D, E, G virus
Secondary Hepatitis include
Yellow fever virus, EBV, CMV, HSV, Rubella virus
Viral Hepatitis can cause:
- Chronic Hepatitis which leads to Cirrhosis and to Hepatocellular Carcinoma (w/ cirrhosis)
Forms of Viral Hepatitis:
Acute
Fulminant Acute
Subclinical
Chronic
No signs and symptoms
Subclinical
Leads to coma bec. of the accumulation of ammonia. Also leads to liver failure
Fulminant Acute
IDENTIFY:
Family: Picornaviridae
Genus: Enterovirus/Hepatovirus
Hepatitis A
IDENTIFY:
Family: Hepadnaviridae
Genus: Orthohepadnavirus
Hepatitis B
IDENTIFY:
Family: Flaviviridae
Genus: Hepacivirus
Hepatitis C
IDENTIFY:
Family: Hepeviridae
Genus: Hepevirus
Hepatitis E
Old Family and Genus Name of Hepatitis E
Family: Caliciviridae
Genus: Calicivirus
IDENTIFY:
Family: Flaviviridae
Genus: Flavivirus
Hepatitis G
IDENTIFY:
Family: Deltaviridae
Genus: Deltavirus
Hepatitis D
NOTE: family name ends with
-viridae, while genera ends with
-virus
Its other names include Infectious Hepatitis, Enterovirus 72, and Short Incubation Hepatitis
Hepatitis A
IDENTIFY based on the incubation period:
a) 40 - 180 days
Average 60 - 90 days
b) 30 - 50 days
c) 15 - 150 days
d): 2 - 9 weeks
e) 15 - 45 days
Average of 28 days
f) Not established
a) Hepatitis B
b) Hepatitis C
c) Hepatitis D
d) Hepatitis E
e) Hepatitis A
f) Hepatitis G
IDENTIFY: based on morphology
1) Enveloped, Icosahedral, Linear, ssRNA, 45 nm
2) Naked (resistant to ether, acid, heat at 60C for 1 hour), icosahedral, linear, ssRNA, 28 nm
3) Naked, Icosahedral, Linear, ss RNA, 30 nm
4) enveloped, Icosahedral, Circular, dsDNA, 42 nm
5) Enveloped, Circular, ssRNA, 37 nm
6) ssRNA. (Size not stated)
1) Hepatitis C
2) Hepatitis A
3) Hepatitis E
4) Hepatitis B
5) Hepatitis D
6) Hepatitis G
Indicates immunity in Hep A
IgG anti- HAV
The first one to appear in Hep A
HAV Ag
IgM anti-HAV is detected by?
Solid Ab ELISA
IgG anti-HAv is detected by?
Competitive inhibition ELISA
Treatment for Hep A
Supportive Care
Prevention/ Vaccine for Hep A
- Inactivated vaccine (Twinrix) 2 doses with 1 month interval
- Treatment of water