Hepatitis Viruses Flashcards by Reema Almutairi

What is the Ss RNA of Hepatitis Viruses ?

(H AV)
(HCV)
(HDV)
(HEV)
كلهم ما عدا B

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dsDNS Hepatitis Viruses ?

HBV

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What is the non envelope Hepatitis Viruses amd source is feces ?

HAV

HEV

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What is the symptoms of Hepatitis Virus?

jaundice, dark urine and pale stool.

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What is the Structure of Hepatitis Virus A ?

1- non-enveloped ss RNA virus

2- It has one serotype.

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HAV is transmitted by the fecal-

oral route ?

HAV , HEV

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What is the most frequently

infected group of HAV Virus ?

Children

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What is the vaccine of Hepatitis A and what is the type of it !

HAV vaccine , type : Killed

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What is the incubation period of Hepatitis A ?

0.5- 1 month.

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What is the incubation period of Hepatitis E ?

0.5- 2 months

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non-enveloped , ssRNA virus ?

HEPATITIS E VIRUS (HEV)

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What is the type of Hepatitis virus is high mortality rates among pregnant women ?

HEPATITIS E VIRUS (HEV)

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HBsAg ?

Infection HBV

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No HBsAg ?

No infection

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The presence of …….. is indicative of the

presence of the HBV ?

HBsAg

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What is the important for diagnosis of HBV in infection and for vaccine preparation ?

HBsAg

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What is the Transmission of HBV ?

1- Blood transfusions, blood products
2- organ donation
3- Intravenous drug abusers
4- Needle stick or sharp injuries

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In the HBV the :
HBs Ag = negative
antiHBc= negative
antiHBs = negative 
This is ?

susceptible ما دخله ال HBV

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The HBV is : 
HBsAg = negative
antiHBc = positive
antiHBs = positive 
is ?

immune due to natural infection

صارت له مناعه بس بسبب انه اصيب بالفيروس من قبل

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In the HBV the : 
HBsAg = negative
antiHBc = negative
antiHBs = positive
Is ?

immune due to vaccine

صارت له مناعه بسبب اللقاح

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In the HBV the : 
HBsAg = positive
antiHBc = positive
IgM antiHBc = positive
antiHBs = negative
Is ?

acutely infected

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In the HBV the : 
HBsAg = positive
antiHBc = positive
IgM antiHBc = negative
antiHBs = negative 
Is ?

Chronically infected

What is the vaccine of HBV in the Active Immunization ?

Recombinant HBV Vaccine

Hwat is the ssRNA defective virus , and non envelope ?

HDV , HCV

Hepatitis D is transmitted principally by ?

percutaneous exposure , mainly blood transfusion

HDV and HBV may concurrently infect a susceptible | host, called ?

coinfection

Alternatively, a person who is already a chronic HBsAg carrier can be ……… with HDV.

superinfected

occurs more frequently than is seen with HBV alone ?

fulminant hepatic failure

What is the Laboratory Diagnosis of Hepatitis D ?

Detect delta antigen or IgM antibodies

What is the Transmission of HDV ?

1- Blood transfusions, blood products 2- organ donation 3- Intravenous drug abusers

What is the Incubation period of HDV ?

0.5 – 6 months

What is the test of HDV that does not distinguish between acute, chronic or resolved infection ?

ELISA

In the HDV thw Seroconversion be delayed up to ?

6 months

What is the vaccine of Hepatitis A (HAV) ?

Killed HAV vaccine

What is the type of hepatitis virus that resistant to lipid solvents (ethanol), extremes of pH (pH 3 - gastric acidity) ?

Hepatitis A (HAV)

What is the PH of Hepatitis A (HAV) ?

resistant to ( pH 3 - gastric acidity )

What is the Prevention of Hepatitis B (HBV) ?

1- Active Immunization: Recombinant HBV Vaccine | 2- Passive Immunization: Hepatitis B immunoglobulin (HBIG)

Hepatitis D (HDV) is transmitted principally by ?

percutaneous exposure, mainly blood transfusion

What is the Structure of enveloped ss RNA virus , Have a genetic variation ( hypervariable) ?

Hepatitis C (HCV)

T-cell in Hepatitis C (HCV) is ?

resolution of acute HCV infection

B-cell in Hepatitis C (HCV) is ?

chronic HCV infection.

What is the Transmission of Hepatitis C (HCV) ?

1- Blood transfusions,→ so, Screening of blood donor by RT-PCR is important. 2- Vertical and Perinatal transmission 3- sexually

What is the non-enveloped single-stranded RNA virus of Hepatitis viruses?

1- Hepatitis A (HAV) | 2- Hepatitis E (HEV)

What is the enveloped ss RNA virus of Hepatitis viruses ?

1- Hepatitis D (HDV) | 2- Hepatitis C (HCV)

What is the Enveloped double-stranded DNA virus ?

Hepatitis B (HBV)

What is the different between Hepatitis viruses ?

Hepatitis A (HAV) : non-enveloped single-stranded RNA virus. Fecal-oral transmission Children are the most frequently infected group. Killed HAV vaccine ``` Hepatitis E (HEV): non-enveloped single-stranded RNA virus Fecal-oral transmission pregnant women No vaccine ``` Hepatitis B (HBV): Enveloped double-stranded DNA virus Active Immunization: Recombinant HBV Vaccine Passive Immunization: Hepatitis B immunoglobulin (HBIG) Hepatitis D (HDV): HDV is a single-stranded RNA enveloped transmitted principally by percutaneous exposure, mainly blood transfusion ``` Hepatitis C (HCV): enveloped ss RNA virus. ```

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Hepatitis Viruses Flashcards

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