<prompt> Neonatal sepsis is not caused byStaphylococcus aureusE. coliGroup B streptococciAcinobacter  <response>: .Neonatal sepsis can be caused by bacteria such as Escherichia coli E coli, Listeria, and some strains of streptococcus. Group B streptococcus GBS has been a major cause of neonatal sepsis. However, this problem has become less common because women are screened during pregnancy. Ref ghai 9e 