A) Tissue culture B) Embryonated eggs C) Animals D) Chemically defined media Answer (Select an option above to get the answer):
(Single Best Answer) Question 43: It is true regading the normal microbial flora present on the skin and mucous membranes that ?
A) It cannot be eradicated by antimicrobial agents B) It is absent in the stomach due to the acidic pH C) It establishes in the body only after the neonatal period D) The flora in the small bronchi is similar to that of the trachea Answer (Select an option above to get the answer):
(Single Best Answer) Question 44: An army jawan posted in a remote forest area had fever and headache. His fever was 104°F and pulse was 70 per min. He had an erythematous lesion of about 1 cm on the leg surrounded by small vesicles, along with generalized lymphadenopathy at the time of presentation to the referral hospital. His blood sample was collected to perform serology for the diagnosis of Rickettsial disease. Which one of the following results in Weil-felix reaction will be diagnostic in this clinical setting ?
A) High OX-2 B) High OX-19 C) High OX-K D) High OX-19 and OX-2 Answer (Select an option above to get the answer):
A) Severe combined immunodeficiency (SCID) B) X-linked agammaglobulinemia C) Transient hypogammaglobulinemia of infancy D) Chronic granulomatous disease Answer (Select an option above to get the answer):
A) Endemic trachoma B) Inclusion conjunctivitis C) Lymphogranuloma venereum D) Community acquired pneumonia Answer (Select an option above to get the answer):
A) It is the commonest cause of gas gangrene B) It is normally present in human faeces C) The principal toxin of C.perfringens is the alpha toxin D) Gas gangrene producing strains of C.perfringens produce heat resistant spores Answer (Select an option above to get the answer):
(Single Best Answer) Question 49: A child was diagnosed to be suffering from diarrhoea due to Camplyobacter jejuni. Which of the following will be the correct enviornmental conditions of incubation of the culture plates of the stool sample ?
A) Temperature of 42°C and microaerophilic B) Temperature of 42°C and 10% carbondioxide C) Temperature of 37°C and microaerophilic D) Temperature of 37°C and 10% carbondioxide Answer (Select an option above to get the answer):
A) Fifteen serovars have been identified as human pathogens B) Mode of transmission is by the airborne bird excreta C) The cytoplasmic inclusions present in the sputum specimen are rich in glycogen D) The group specific antigen is responsible for the production of complement fixing antibodies Answer (Select an option above to get the answer):