Streptococci and Enterococci — MCQs

Heating a bacterial sample at 60°C for 30 minutes would isolate which of the following?

Virulence or pathogenicity of pneumococcus depends on

A patient with colorectal cancer develops septicemia complicated by endocarditis. You would expect the blood cultures to grow?

Which of the following organisms is considered the classic example of polysaccharide capsular resistance to phagocytosis?

Which of the following is TRUE regarding bacterial vaginosis?

Drug of choice for Enterococcus infection in a patient allergic to penicillin?

HACEK group of organisms includes all, except:

A 35-year-old patient presents to the OPD 24 hours after a fight with a stranger in which he was bitten. GCS is 15/15 and following injury is noted on left forearm. He complains of extreme pain and tenderness in the injury. Swab from the injury was plated in chocolate agar and incubated in 10% carbon dioxide for 48 hours. Small colonies with pitting appearance were noted. Which of the following organism is responsible?

After 5 days of birth, a baby developed poor feeding, convulsions, fever, high protein, low sugar, and low chloride levels in the cerebrospinal fluid. This is most likely due to what?

An 80-year-old woman, a retirement home resident, has multiple bouts of pneumonia caused by Streptococcus pneumoniae. In an attempt to prevent such infections, polyvalent vaccines directed at multiple serotypes of the organism have been administered but have not elicited long-acting immunity. Which of the following is the probable explanation for this phenomenon?