The best way of detecting the presence of viruses in the infected cell – culture is____________?
(A) Cytopathic changes in culture cells
(B) Presence of viral protein in the infected monolayer
(C) Haemagglutination test
(D) Haemagglutination inhibition test
True about immune response of hepatitis B is__________________?
(A) Antibody of HBs Ag is associated with resistance to infection
(B) Antibody to HBC is not protective
(C) Highest titres of anti HBC are found in persistent carriers of HBs Ag
(D) CMI disappears soon after recover
Enterically transmitted NANB hepatitis B_____________?
(A) Hepatitis C
(B) Hepatitis D
(C) Hepatitis E
(D) Hepatitis F
Which of the following methods is adopted for screening HIV infection ?
(A) Virus isolation
(B) Western blot followed by ELISA
(C) ELISA followed by western blot technique
(D) Polymers chain reaction
EBV causes all except_________________?
(A) Carcinoma of nasopharynx
(B) Papilloma
(C) Infectious mononucleosis
(D) Burkitt’s lymphoma
True about HIV are all except______________?
(A) DNA virus
(B) Attacks CD4 cells
(C) Macrophages are the reservoir
(D) Decrease CD4 count in late stages
The culture media used for cultivation of HSV is_____________?
(A) Chocolate agar
(B) Robertoson’s cooked-meat broth
(C) Chorio allantoic membrane
(D) Sabourad’s agar
Half-life of free HIV in plasma is________________?
(A) 24 hours
(B) 6 hours
(C) 12 hours
(D) 3 months