This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Vaccine is NOT available against which serotype of Neisseria meningitidis? 
Select and explain. 
A. A, B. B, C. C, D. Y
B: B
Answer: B: B 
Explanation: Bivalent (groups A and C) or tetravalent (against groups A, C, Y and W-135) vaccines are available for protection against meningococcal meningitis. Ref: Park 21st edition, page 151.