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
All vaccine reduce pneumonia induced moality except? 
Select and explain. 
A. Measles, B. Rebella, C. HIB, D. Pneumococcal
B: Rebella
Answer: B: Rebella 
Explanation: Ans. is `b' i.e., Rebella Measles vaccine, HIB vaccine (Haemophilus influenzee type B), Pneumococcal vaccines work to reduce the incidence of bacterial pneumonia.