A. Hepatitis E virus B. Hepatitis C virus C. Hepatitis B virus
D. Hepatitis G virus E. Hepatitis D virus
19. During laboratory diagnostics of hepatitis C, it is necessary to detect the presence of antibodies to hepatitis C virus in the patient’s blood serum. What test should be conducted in this case?
A. Enzyme-linked immuno sorbent assay (ELISA) B. Nucleic acid hybridization with signal amplification C. DNA probe method
D. Ligase chain reaction E. Nucleic acid hybridization
20. To test donor blood for hepatitis B antigens, it is necessary to use highly sensitive detection methods. What test should be used for this purpose?
A. Solid-phase enzyme-linked immunosorbent assayB. Indirect hemagglutination
C. Complement binding D. Immunoelectrophoresis
E. Indirect immunofluorescence
21. Lately, the laboratory diagnostics of hepatitis B includes detecting the presence of viral DNA in the patient’s blood. What reaction is used to determine it?
A. Polymerase chain reactionB. Hemagglutination inhibition reaction
C. Indirect hemagglutination reaction D. Enzyme-linked immunosorbent assay
E. Complement fixation reaction
22. Hepatitis В is diagnosed through laboratory tests that determine the presence of HBA-DNA in blood serum of the patient. What reference method is applied for this purpose?
A. Polymerase chain reaction B. Hybridization signal amplification method
C. ELISA diagnostic method D. Ligase chain reaction method
E. Hybridization method
23. It is known that hepatitis D virus belongs to defective viruses and can reproduce in the host cells only in the presence of virus of:
A. Hepatitis G B. Hepatitis E C. Hepatitis C D. Hepatitis A E. Hepatitis B
HIV 1. RNA that contains AIDS virus penetrated into a leukocyte and by means of reverse transcriptase forced a cell to synthesize a viral DNA. This process is based upon:
