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Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?

(A) Enterotoxin A

(B) Enterotoxin B

(C) Enterotoxin D

(D) Enterotoxin F

Submitted By: Ali Uppal


Rickettsiae__________________?

(A) Multiply within living cell

(B) Transmitted by arthropod vectors

(C) Respond to tetracycline therapy

(D) All of the above

Submitted By: Ali Uppal


Opacity around colonies of Clostridium perfringens is due to_________________?

(A) Theta toxin

(B) Lecithinase

(C) Desmolase

(D) Cytokinin

Submitted By: Ali Uppal


Commonest mycobacterial infection in tropical countries_______________?

(A) M. leprae

(B) M. avium intracellulare

(C) M. tuberculosis

(D) Kansasi

Submitted By: Ali Uppal


Rapid diagnosis of Tuberculosis is possible with_______________?

(A) Ziel Nelson

(B) Kin Young stain

(C) Auramine-Rhodamine stain

(D) Giemsa stain

Submitted By: Ali Uppal


Leprosy bacilli can be grown in_________________?

(A) Foot paid on nine branded armadilo

(B) Tail of guinea pig

(C) Testes of albino rats

(D) Testes of guinea pig

Submitted By: Ali Uppal


Streptococcus is classified based on__________________?

(A) M Protein

(B) Cultural characteristics

(C) Bile Solubility

(D) Cell wall carbohydrate

Submitted By: Ali Uppal


Pneumococus can be differentiated from streptococcus by________________?

(A) Type of hemolysis

(B) Gram staining

(C) Growth characteristics

(D) Bile solubility

Submitted By: Ali Uppal


Submitted By: Ali Uppal


All of the following lab tests can be used to distinguish streptococcus mutans from other oral streptococci, except______________?

(A) Gram staining

(B) Fermentation of mannitol and sorbital

(C) Production of intracellular and extracellular adherent polysacharide

(D) Colony morphology on saliva agar

Submitted By: Ali Uppal