Which of the following capsular polysaccharides is used for preparing a vaccine against meningococcal meningitis?

Which of the following capsular polysaccharides is used for preparing a vaccine against meningococcal meningitis? Correct Answer serovar A and C

A vaccine is available for epidemic control of meningococcal meningitis and consists of the purified capsular polysaccharides of serovars A and C; the serovar B polysaccharide appears not to be highly immunogenic.
Bissoy MCQ

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