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Infectious Diseases: Hepatitis and Viral Pathogens

12 Questions

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Infectious Diseases: Hepatitis and Viral Pathogens

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Questions and Answers

What is the transmission route of Hepatitis A virus?

Fecal-oral (correct)

Parenteral, sexual, perinatal

Blood, sexual contact, mother-to-child

Saliva, blood transfusion, transplacentally

Which of the following serological markers is associated with acute Hepatitis B infection?

Anti-HBs

HBsAg

IgM anti-HBc (correct)

HBeAg

What is the incubation period of Syphilis?

10-90 days (correct)

10-14 days

60-90 days

28 days

Which of the following viruses requires coinfection with Hepatitis B virus?

Hepatitis D virus Signup and view all the answers

What is the transmission route of Hepatitis E virus?

Fecal-oral Signup and view all the answers

Which of the following serological tests is used to diagnose HIV infection?

p24 antigen, HIV RNA, PCR Signup and view all the answers

What does the presence of HBsAg indicate?

Active infection and high infectivity Signup and view all the answers

Which HIV gene product is responsible for binding CD4?

gp120 Signup and view all the answers

What is the purpose of the third generation of HIV ELISA?

Detects antibodies and p24 antigen Signup and view all the answers

What is the stage of syphilis characterized by a period of dormancy?

Latent Signup and view all the answers

Which antibody is used to monitor viral load and therapy effectiveness in Hepatitis B infection?

HBV DNA Signup and view all the answers

What is the function of the HIV protein p66?

Reverse transcriptase Signup and view all the answers