This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gram-Negative Bacterial Infections, Subject name: Pediatrics
Most common organism causing neonatal meningitis is - 
Select and explain. 
A. E. coli, B. Listeria, C. Pseudomonas, D. Staph aureus
A: E. coli
Answer: A: E. coli 
Explanation: Ans. is 'a' i.e., E. coliAcute Bacterial meningitisCauses:o Neonatal periodE. coliStreptococcus pneumoniaeSalmonellaPseudomonaso 3 month - 3 yearsH. influenzaeS. pneumoniaeMeningococcuso Beyond 3 yearS. pneumoniaeMeningococcus