Corynebacterium and Listeria — MCQs

Which of the following bacteria produces a toxin that inhibits protein synthesis?

DOC for prophylaxis against Diphtheria is:-

A bacterial culture shows 'tumbling motility' pattern. Which microscopic finding would confirm Listeria monocytogenes?

A patient presents with suspected diphtheria. What media will be used to diagnose this condition?

Assertion: Myocarditis is seen as a complication in faucial diphtheria. Reason: It is due to the exotoxin produced by Corynebacterium diphtheriae.

A mother brings her 1-month-old infant to the pediatrician. She says the baby is crying more than usual and is vomiting and does not want to eat. Meningitis is suspected, and a lumbar puncture is done, which shows the following results; Opening pressure = 240 mm H2O (normal = 100-200 mm H2O), WBC count: 1200/mm3, Protein: 200 mg/dL, Glucose: 30 mg/dL, Gram stain: gram-positive rods, Which of the following organisms is most likely responsible for this infant's meningitis?

A baby born at 32 weeks gestation with Apgar scores of 2 and 7 was placed in the neonatal intensive care unit. She developed a fever and leukocytosis; lumbar puncture revealed pleocytosis with increased protein, decreased glucose, and gram-positive rods. Which one of the following organisms was most likely isolated from the CSF?

A child comes with fever, cold, cough, and a membrane over the tonsils; a nasal swab is taken. On which medium should the culture be done for the earliest diagnosis of diphtheria?

All are true about Listeria monocytogenes except:

Which of the following statements about Corynebacterium diphtheriae is true?