Most common cause of meningitis in children between 6 months to 2 years of age is:
High-Yield Explanation
Most common cause of meningitis from 3months to 2-3 years is due to Hemophilus Influenza, Streptococcus Pneumonia, Meningococci. Ref: Kliegman, Behrman, Jenson, Stanton (2008), Chapter 602, "Central Nervous System Infections", In the book, "NELSON TEXTBOOK OF PEDIATRICS", Volume 2, 18th Edition, New Delhi, Page 2514