E. coli-Meningitis and Sepsis o Neonatal meningitis is the leading cause of neonatal meningitis and septicemia with a high mortality rate. Usually caused by strains with the Kl capsular antigenE.coli-Meningitis and Sepsis ⚫ Neonatal meningitis – is the leading cause of neonatal meningitis and septicemia with a high mortality rate. Usually caused by strains with the K1 capsular antigen