Human immunodeficiency virus (HIV) affets:
A. Red blood cells
B. Fibroblasts
C. Helper T lymphocytes (CD4)
D. Mast cells
Following hepatitis B infection through blood transfusion disease manifests in:
A. 1 week
B. 6 week
C. 3 months
D. 6 months
Viruses can be cultured in all except:
A. Chick embryo
B. Blood agar
C. Guinea pigs
D. Cell culture
Most common opportunistic infection in AIDS is:
A. Cryptococcosis
B. Tuberculosis
C. Candidiasis
D. Aspergilosis
Cytopathic effect is shown by:
A. Virus
B. Bacteria
C. Spirochete
D. Anaerobe
A rise in the anti-HBc immunoglobulin in a patient indicates:
A. Acute infection
B. Carrier state
C. Prodromal phase
D. Convalescence
The HIV virus can be destroyed invitro by which of the following:
A. Boiling
B. Ethanol
C. Cidex
D. All of the above
Certain viruses have been isolated in crystalline form and have been found to be:
A. Nucleotides
B. Phospholipids
C. Scleroproteins
D. Nucleoproteins
Pigs are important source of:
A. Japanese encephalitis
B. Kuru
C. Yellow fever
D. Rabies
Incubation pariod of herpes zoster is:
A. 7-14 days
B. 1 months
C. 1-2 years
D. 3-6 months
