<prompt> A newborn of 7 days old presented with meningitis. Most common cause a E.colib Streptococcal pneumoniac N. Meningitisd Streptococcal agalactiaebcacad  <response>: Group B streptococcus followed by E.coli are the two most common causes of neonatal meningitis.___ NelsonNote -For exams like AIIMS AI, where only one options is correct, streptococcus agalactiae group B streptococcus is best answer. 