Quiz Answers

Quiz Answers

Diagnosis of carrier of Salmonella typhi may be shown by
- a. Fecal culture
- b. Bile culture
- c. Urine culture
- d. All of these ✅

Daisy head colony is associated with
- a. M. tuberculosis
- b. C. diphtheriae ✅
- c. Cl. tetani
- d. None of these

Neil mooseri reaction is related to
- a. Rickettsiae ✅
- b. Chlamydiae
- c. Spirochaetes
- d. Clostridium perfringens

All of the following are DNA viruses except –
- a. Parvo virus
- b. Paramyxo virus ✅
- c. Herpes virus
- d. Pox virus

The dengue fever virus is –
- a. Arbo virus ✅
- b. Echo virus
- c. Entero virus
- d. Orthomyxo virus

Dengue fever is caused by –
- a. Bacteria
- b. Virus ✅
- c. Fungi
- d. Rickettsia

Which of the following characters are related to viruses?
- a. No growth on inanimate culture media
- b. Not sensitive to antibiotics
- c. No energy producing enzymes
- d. Insensitive to interferon ✅

Main causative organism of chickenpox is
- a. Fox virus
- b. Mumps virus
- c. Measles virus
- d. None of these ✅

Rickettsia are stained with
- a. Giemsa and Castaneda stains
- b. Macchiavello and Gimenez stains
- c. Both a and b ✅
- d. Malachite green

A rise in the anti-HBc immunoglobulin in a patient indicates______?
- a. Acute infection ✅
- b. Carrier state
- c. Prodromal phase
- d. Convalescence

Cytopathic effect is shown by_______?
- a. Virus ✅
- b. Bacteria
- c. Spirochete
- d. Anaerobe

Which of the following would you consider to be general properties of viruses________?
- a. New virus particle arises directly (by division) from preexisting viruses
- b. Fall into the general size range of 200-3000 angstrom unit ✅
- c. Contain equal proportions of protein, lipo polysaccharide, and nucleic acids
- d. Contain DNA but no RNA

Most common opportunistic infection in AIDS is_______?
- a. Cryptococcosis
- b. Tuberculosis
- c. Candidiasis ✅
- d. Aspergillosis

Viruses can be cultured in all except______?
- a. Chick embryo
- b. Blood agar ✅
- c. Guinea pigs
- d. Cell culture

Following hepatitis B infection through blood transfusion, disease manifests in_____?
- a. 1 week ✅
- b. 6 weeks
- c. 3 months
- d. 6 months

The Window period in HIV infection means_____?
- a. The time lapse between the infection and detection of viral antibodies ✅
- b. The time lapse between the infection and development of AIDS
- c. The time lapse between obtaining the sample and detection of virus in the lab
- d. None of the above

Human immunodeficiency virus (HIV) affects_______?
- a. Red blood cells
- b. Fibroblasts
- c. Helper T lymphocytes (CD4) ✅
- d. Mast cells

The classic opportunistic infection in acquired immune deficiency syndrome is______?
- a. Aphthous stomatitis
- b. Tuberculosis
- c. Pneumocystis carinii pneumonia ✅
- d. Herpetic gingivostomatitis

Influenza is caused by______?
- a. Orthomyxo virus, which is a DNA virus
- b. Paramyxo virus, which is a RNA virus
- c. Paramyxo virus, which is a DNA virus
- d. Orthomyxo virus, which is a RNA virus ✅

Human immune deficiency virus is __ virus?
- a. Rheo
- b. Retro ✅
- c. Rhabdo
- d. Flavi

Both intranuclear and intracytoplasmic inclusions are present in which of the following viruses______?
- a. Pox virus
- b. Measles virus ✅
- c. Hepatitis B virus
- d. HIV

In which of the following immunization is given after infection is started______?
- a. Rabies ✅
- b. Poliomyelitis
- c. Influenza
- d. Herpes

Incubation period of herpes zoster is______?
- a. 7-14 days ✅
- b. 1 month
- c. 1-2 years
- d. 3-6 months

True about prions________?
- a. Composed largely of proteins without any nucleic acid ✅
- b. Phase in which virus cannot be demonstrated in host cell
- c. Viruses which are genetically deficient
- d. Viral components may be synthesized but maturation & assembling is defective

Pigs are important source of_____?
- a. Japanese encephalitis ✅
- b. Kuru
- c. Yellow fever
- d. Rabies

Herpes virus_______?
- a. Acquires its envelope from nuclear membrane ✅
- b. Acquires its envelope from nucleolar membrane
- c. Acquires its envelope from cytoplasmic membrane
- d. None of the above

The presence of Which of the following factors in viruses makes protective vaccines a possibility ?
- a. Enzymes
- b. Protein coat ✅
- c. Polysaccharide
- d. Lipids

Certain viruses have been isolated in crystalline form and have been found to be_____?
- a. Nucleotides
- b. Phospholipids
- c. Scleroproteins
- d. Nucleoproteins ✅

The HIV virus can be destroyed in vitro by which of the following_______?
- a. Boiling
- b. Ethanol
- c. Cidex
- d. All of the above ✅

Portal of entry of poliovirus is mainly______?
- a. Gastrointestinal tract ✅
- b. Nasal mucosa
- c. Lung
- d. Skin

Presence of HBe Ag in patients with hepatitis indicates______?
- a. Simple carriers
- b. Late convalescence
- c. High infectivity ✅
- d. Carrier status

Which does not have a viral etiology_____?
- a. Carcinoma Cervix
- b. Hepatoma ✅
- c. Nasopharyngeal carcinoma
- d. Lymphoma

Viron is defined as_______?
- a. Extracellular infectious virus particle ✅
- b. Smallest virus
- c. A smallest particle similar to virus
- d. None of the above

One virus particle prevents multiplication of the 2nd virus. This phenomenon is_____?
- a. Viral interference ✅
- b. Mutation
- c. Supervision
- d. Permutation

The only virus, which has double-stranded RNA, is_____?
- a. Bunya virus
- b. Reo virus ✅
- c. Calci virus
- d. Rhabdo virus

Which of the following correctly indicates the infectivity of hepatitis virus in humans ?
- a. HBcAg
- b. HBeAg ✅
- c. Anti-HBc
- d. Anti-HBs

Which of the following represents the serologic evidence of recent Hepatitis B virus infection during the window period ?
- a. HBs Ag
- b. IgM anti – HBc ✅
- c. Anti HBs
- d. None of the above

For the treatment of a case of class III dog bite, all of the following are correct except______?
- a. Give immunoglobulins for passive immunity
- b. Give ARV
- c. Immediately stitch wound under antibiotic coverage ✅
- d. Immediately wash wound with soap and water

Which of the following is a RNA virus ?
- a. Measles virus ✅
- b. Herpes Virus
- c. Pox virus
- d. Adeno virus

Following is a retrovirus_______?
- a. Immunodeficiency virus ✅
- b. Influenza
- c. Polio virus
- d. Hepatitis virus

Type of Human papilloma virus associated with carcinoma cervix_____?
- a. Type 6,12,18
- b. 16,18,31 ✅
- c. 6,8,11
- d. 3,10,19

The viral action is differentiated from bacterial action by______?
- a. Interferon production ✅
- b. Toxin production
- c. Lymphocytes production
- d. Neutrophils production

What is the sequence which a retro virus follows on entering a host cell ?
- a. RNA -DNA-RNA ✅
- b. RNA-DNA
- c. DNA-RNA
- d. DNA-RNA-DNA

Which of the following viruses appears to be involved in the pathogenesis of Kaposi’s sarcoma_____?
- a. Human Herpes Virus 3
- b. Human Herpes Virus 1
- c. Human Herpes Virus 8
- d. Human Herpes Virus 4 ✅

Seroconversion in HIV infection takes place in______?
- a. 2 weeks
- b. 4 weeks ✅
- c. 9 weeks
- d. 12 weeks

Babu, a 28-year-old male, comes with a complaint of exposure 3 weeks back, having cervical lymphadenopathy, hepatosplenomegaly. Diagnosis of HIV is done by______?
- a. ELISA
- b. Western blot
- c. P24 antigen ✅
- d. Lymph node biopsy

Anti HBsAB indicates_______?
- a. Resistance to hepatitis B
- b. Acute infection
- c. Good prognosis ✅
- d. Hepatocellular carcinoma

Presence of HBe Ag in patients with hepatitis indicates_______?
- a. Simple carriers
- b. Late convalescence
- c. High infectivity ✅
- d. Carrier status

Which of the following does not go into chronic hepatitis stage ?
- a. HBV
- b. HCV
- c. HDV
- d. HEV ✅

Which of the following belongs to cell fraction-derived vaccine______?
- a. Measles
- b. Mumps
- c. Rubella
- d. Hepatitis B ✅

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