These Gram-positive pleomorphic bacteria are toxin producers that cause formation of a pseudomembrane in the throat...

These Gram-positive pleomorphic bacteria are toxin producers that cause formation of a pseudomembrane in the throat that can restrict airflow. This pathogen is

A.

Bordetella pertussis

B.

Streptococcus pyogenes

C.

Corynebacterium diphtheriae

D.

Neisseria meningitidis

E.

Streptococcus pneumoniae

Expert Solution

Ans:

C. Corynebacterium diphtheriae

Explanation: Corynebacterium diphtheriae is gram-positive, non spore forming, pleiomorphic (change size and shape in response to environment) bacteria that causes diphtheria. This bacteria produces diphtheria toxin that inhibits protein synthesis and causes fever, malaise, myocarditis, nasal ulcers, pseudomemrane in the throat etc. This pseudomembrane in the throat restricts air flow and result in suffocation. Bordetella pertussis is a gram negative bacteria that causes pertussis or whooping cough. Neisseria meningitidis is also a gram negative bacteria causing meningitis. Streptococcus pneumoniae is a gram positive bacteria causes pneumonia, meningitis, middle ear infections etc. The symptoms of pneumonial disease is chest pain, shortness of breath, coughing, fever, disorientation etc. Streptococcus pyogenes is also a gram positive bacteria that causes pharyngitis, fever (scarlet, rheumatic), tonsillitis, skin infection etc.

gladiator answered 1 year ago

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