Solve Microbiology AIIMS 2019 1. Transmission assessment survey is carried out for: P. vivax P. falciparum Leishmania Filariasis None 2. Which among the following is a subcutaneous fungal agent? Histoplasma capsulatum Cryptococcus neoformans Sporothrix schenckii Talaromyces marneffei None 3. Which among the following occupation is a risk factor for this presenting illness? Lifeguard in a swimming pool Poultry worker Kennel Worker Veterinarian None 4. A hospital has reported an outbreak of MRSA infection. On investigation, it was found that a staff nurse had nasal carriage of MRSA. Which of the following drugs helps in the removal of colonization of bacteria? Topical mupirocin Inhaled colistin Inj. cephalosporin Oral vancomycin None 5. A patient is diagnosed with Hepatitis B infection. Which of the following markers will always be present in his serum, even during recurrences, or if he develops chronic hepatitis? Anti HBs Ab HBc Ag HBe Ag Anti HBc Ab None 6. Mw vaccine is extracted from which bacteria, mentioned below: M. indicus prani M. leprae M. welchi M. bovis None 7. Which toxin acts via the mechanism depicted in the image below? Diphtheria Tetanus Pertussis Botulinum None 8. Which immunoglobulin is elevated in a case of chronic allergy? IgG IgA IgM IgE None 9. The toxin produced by the organisms shown below acts via Increase in CAMP RNA glycosidase Increase in cGMP ADP ribosylation of EF2 None 10. A 27-year-old man presents with a history of urethral discharge for the last three days. A gram stain smear of the discharge is shown below. All of the following are true regarding the likely etiology except? Catalase and oxidase positive Obligate intracellular organism Shows twitching motility Pili is a virulence factor None 11. A HIV patient with fever, chronic diarrhea presented to OPD. His stool was examined which showed the following oocysts. Identify the components used for staining the stool. Crystal violet, iodine, acid alcohol, carbol fuchsin Methylene blue, iodine, acid alcohol, carbol fuchsin Methanol, Kinyoun's carbol fuchsin, acid alcohol, methylene blue Methanol, dilute carbol fuchsin, acid alcohol, crystal violet None 12. The CLED medium is preferred over other media for the culture of organisms in case of UTI because: It promotes the growth of pseudomonas It inhibits proteus swarming It promotes the growth of candida, streptococcus and staphylococcus It differentiates between lactose-fermenting and non-lactose fermenting bacteria None 13. Which of the following organisms cause multiple alveolar-like lesions in the liver? Echinococcus granulosus Entamoeba histolytica Echinococcus multilocularis Cysticercus cellulosae None 14. Choose the wrong statement about Plasmodium species: Drug resistant falciparum is seen in India Severe malaria with shock is called algid malaria Presence of duffy blood group antigen is protective against vivax Relapse is seen in P. ovale None 15. All of the following can be seen intracellularly in hepatocytes except: Toxoplasma Plasmodium Babesia Leishmania None 16. A Giemsa stain of a thin peripheral smear is prepared. Which of the following cannot be diagnosed? Toxoplasma gondii Coxiella burnetii Bartonella henselae Ehrlichia chaffeensis None 17. Which of the following is false about influenza? 5-12 years is a high risk group Aquatic birds act as reservoir Secondary attack rate is 5-15% Virus shedding is present before symptoms begin None 18. A farmer from the sub-Himalayan belt had a thorn prick injury a year back and developed a warty, verrucous growth at the site of prick. A skin biopsy sample was taken and sent for histopathological examination. The characteristic microscopic body as shown in the image was seen. Which of the following could be the most likely diagnosis? Chromoblastomycosis Sporotrichosis Blastomycosis Pheohyphomycosis None 19. B 1-3 glucan assay is used to diagnose all except? Aspergillosis Candidiasis Mucormycosis Pneumocystis pneumonia None 20. Which of the following is a xenodiagnostic method? Intradermal test on guinea pigs for toxigenicity of Corynebacterium diphtheria Injecting a hamster with splenic biopsy for diagnosis of leishmaniasis Injecting Aedes thorax with the blood of a patient with suspected dengue Rabbit ileal loop assay for ETEC None 1 out of 20 Time's up
