2651. Australia antigen is associated with_______?

• a. Hepatitis B surface antigen in acute hepatitis ✅
• b. AIDS
• c. Chronic leukemia
• d. Basal cell carcinoma

2652. Antibody to HSV will begin to appear_______?

• a. in a week and reach a peak in 3 weeks ✅
• b. only after one year
• c. no antibodies are present in primary HSV
• d. antibodies are present in recurrent and chronic apthous stomatitis

2653. Half-life of free HIV in plasma is_____?

• a. 24 hours
• b. 6 hours ✅
• c. 12 hours
• d. 3 months

2654. 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

2655. All of the following infections may be transmitted by dental instruments except_______?

• a. HIV
• b. Hepatitis C
• c. Hepatitis B
• d. Hepatitis E ✅

2656. HIV is transmitted by all of the following routes except_______?

• a. Saliva ✅
• b. Needle prick injury
• c. Blood transmission
• d. Sexual intercourse

2657. The mechanism by which most fungi cause disease is_____?

• a. exotoxin production
• b. lecithinase production
• c. hypersensitivity ✅
• d. Coagulase production

2658. Fungus capable of forming a fungal ball is_____?

• a. Penicillium
• b. Aspergillus ✅
• c. Mucor
• d. Rhizopus

2659. The culture media for fungus is_______?

• a. Tellurite medium
• b. NNN medium
• c. Chocolate agar medium
• d. Sabouraud’s medium ✅

2660. The medium of choice for culturing yeast from dimorphic fungi is_______?

• a. Brain – heart infusion
• b. Sabouraud’s
• c. Sabouraud’s plus antibiotics ✅
• d. Any medium incubated at 35-37°C

2661. Dematophytes are fungi infecting______?

• a. Subcutaneous tissue
• b. Systemic organs
• c. Nails, hair, and skin ✅
• d. Superficial skin and deep tissue

2662. Transmission of all of the following intestinal parasites takes place by the feco-oral route except______?

• a. Giardia lambia
• b. Ascaris lumbricoides
• c. Strongyloides ✅
• d. Entamoeba

2663. Investigation of choice for invasive amoebiasis is_______?

• a. Indirect hemagglutination
• b. ELISA ✅
• c. Counter immune electroporesis
• d. Microscopy

2664. Black water fever is caused by_____?

• a. Plasmodium vivax
• b. Plasmodium falciparum ✅
• c. Leishmania donovani
• d. Microfilaria

2665. Causative organism of Kalahazar is_____?

• a. Plasmodium ovale
• b. Leishmania donovani ✅
• c. Entamoeba histolytica
• d. Toxoplasma

2666. All the following amoeba live in the large intestine except_______?

• a. coli
• b. nana
• c. gingivalis ✅
• d. histolytica

2667. All are true about Entamoeba histolytica except______?

• a. Cysts are 8 nucleated ✅
• b. Cysts are 4 nucleated
• c. Trophozoites colonize in the colon
• d. The chromatid bodies are stained by iodides

2668. All are seen in a cyst of E. histolytica except_______?

• a. Glycogen mass
• b. Chromatid bars
• c. Eccentric nucleus
• d. Refractile nucleus ✅

2669. Sporozoites of Plasmodium falciparum are shaped_______?

• a. Dot
• b. Comma
• c. Banana
• d. Sickle ✅

2670. True about Toxoplasma gondii is, it is carried by______?

• a. cats ✅
• b. Dogs
• c. Rats
• d. Cow

2671. Which worm is longest_____?

• a. T. Solium
• b. T. Saginata ✅
• c. Hookworm
• d. A. Lumbricoides

2672. Thread worm is_____?

• a. Enterobius ✅
• b. Ancylostoma
• c. Ascaris
• d. Necator

2673. Highest incidence of anemia in the tropics is due to_____?

• a. Hookworm ✅
• b. Thread worm
• c. Ascaris
• d. Guinea worm

2674. Medusa lock appearance in X-ray is seen in_____?

• a. Ascariasis ✅
• b. Tapeworm
• c. Hookworm
• d. Ascariasis and tapeworm

2675. Culture media of Candida is_______?

• a. Methylene blue dextrose agar
• b. Sabouraud’s medium ✅
• c. Pingolevin
• d. All of the above

2676. The following is not true of Candida albicans_____?

• a. Yeast-like fungus
• b. Forms Chlamydospores
• c. Blastomeres seen in isolates ✅
• d. Seen in immunocompromised and causes meningitis in them

2677. Opportunistic infection is caused by_______?

• a. Penicillium
• b. Mucor
• c. Aspergillus
• d. All of the above ✅

2678. The inflammatory type of tinea capitis with superadded secondary bacterial infection leading to a painful, circumscribed, boggy, and indurated lesion, is called_______?

• a. Kerion ✅
• b. Alopecia areata
• c. Pilomatrixoma
• d. Tinea incognito

2679. Reynolds Braude phenomenon is shown by_____?

• a. Candida albicans ✅
• b. Mucor
• c. Cryptococcus
• d. Aspergillus

2680. Candidal hyphae can be stained using______?

• a. Van Gieson’s stain
• b. Periodic acid-Schiff stain ✅
• c. Masson Trichrome stain
• d. Toluidine blue stain

2681. Following are the characteristics of Cryptococcus neoformans EXCEPT_______?

• a. Noncapsulated fungus infecting man ✅
• b. Causes meningitis
• c. Melanin production related to virulence
• d. Basidiomycetes yeast

2682. Normal ratio of CD4 (T4) : CD8 (T8) is______?

• a. 2:1 ✅
• b. 1:2
• c. 3:1
• d. 1:3

2683. Lesions caused by Entamoeba histolytica predominantly involve______?

• a. Caecum and large intestine ✅
• b. Duodenum
• c. Stomach
• d. Jejunum and Ileum

2684. Which of the following parasite causes autoinfection______?

• a. Giardia lambella
• b. Isopora belli
• c. Balantidium coli
• d. Taenia solium ✅

2685. Probiotic organism used______?

• a. E. coli
• b. Bifidobacteria ✅
• c. Staphylococcus
• d. Salmonella

2686. Sleeping sickness is caused by______?

• a. House fly
• b. Sand fly
• c. Tick
• d. Reduvid bug ✅

2687. Injection abscesses due to use of contaminated vaccines occur in infections caused by______?

• a. M. Kansasii
• b. M. ulcerans
• c. M. chelonae ✅
• d. M. smegmatis

2688. Donovanosis, true is______?

• a. Caused by Calymmatobacterium granulomatis ✅
• b. Lymphadenopathy is remarkable & diagnostic
• c. Penicillin is drug of choice
• d. Characterized by painful genital ulcers

2689. CD4 count in a normal healthy adult is______?

• a. 500
• b. 200
• c. 1000 ✅
• d. 300

2690. A cerebrospinal fluid of a 2-year-old child has been sent to the laboratory to detect the presence of capsulated yeast. The staining technique most commonly employed for the purpose is_____?

• a. India ink preparation ✅
• b. Methanamine silver stain
• c. Ziehl-Neelsen stain
• d. Pyte-ferraco stain

2691. Most fungi of medical importance belong to_____?

• a. Zygomycetes
• b. Ascomycetes
• c. Basidiomycetes
• d. Deuteromycetes ✅

2692. A mother donated a kidney to her daughter having chronic renal failure, which kind of graft it represents_______?

• a. Allo ✅
• b. ISO
• c. Xeno
• d. Auto

2693. Which of the following is most potent antigen for stimulating both humoral and cell-mediated immunity?

• a. Adjuvant
• b. Proteins ✅
• c. Polysaccharides
• d. Lipids

2694. In falciparum malaria, causes of anemia are due to all except______?

• a. Hemolysis
• b. Malabsorption ✅
• c. Spleen sequestration
• d. Bone marrow depression

2695. Which of the following is not transmitted by lice?

• a. Trench fever
• b. Relapsing fever
• c. Q fever ✅
• d. Epidemic typhus

2696. Which stage of Plasmodium vivax is infective to the mosquito_______?

• a. Sporozoite
• b. Gametocyte ✅
• c. Merozoite
• d. Zygote

2697. Schuffner’s dots are seen in infection due to_____?

• a. Plasmodium falciparum
• b. Plasmodium vivax ✅
• c. Plasmodium malariae
• d. Plasmodium ovale

2698. Man is the only reservoir for_______?

• a. Salmonella
• b. Campylobacter jejuni
• c. Entamoeba histolytica ✅
• d. Y. enterocolitica

2699. A 30-year-old patient developed high fever of sudden onset. Peripheral blood smear showed crescent-shaped gametocytes. Malaria pigment was dark brown in color. Which of the following malarial parasites is the causative agent?

• a. Plasmodium vivax
• b. Plasmodium malaria
• c. Plasmodium falciparum ✅
• d. Plasmodium ovale

2700. Commonest site of extraintestinal amoebiasis is________?

• a. Brain
• b. Liver ✅
• c. Spleen
• d. Lungs

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