Which of the following is the most common cause of neonatal meningitis?

Haemophilus influenzae b

Streptococcus agalactiae

Neisseria meningitidis

Streptococcus pneumoniae

The most common cause of neonatal meningitis Streptococcus agalactiae.

Explanation:

Neonatal meningitis -

It is a serious medical condition found in infants, which can be fatal, when remain untreated.

Meningitis refers to the inflammation in the meninges, which is a protective membrane on the central nervous system.

This disease is most common when the infant is less than 44 days i. e., neonatal period.

The mortality rate is around 8 - 12.5 % in the developed countries.

The most common cause of Neonatal Meningitis is the bacterial infection in the blood, which is called bacteremia, specifically the Streptococcus agalactiae.