Most common organism causing neonatal meningitis is
E. coli
Listeria
Pseudomonas
Staph aureus
The most common causes of neonatal meningitis is bacterial infection of the blood, known as bacteremia (specifically group B streptococci (Streptococcus agalactiae), Escherichia coli, and Listeria monocytogenes . Reference: GHAI Essential pediatrics, 8th edition
Central Nervous system