A preterm female infant delivered by cesarean section was sent home after complete recovery and performance of normal fu

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A preterm female infant delivered by cesarean section was senthome after complete recovery and performance of normal functionsincluding breast feeding. One week later, the infant was broughtback to the emergency department with fever, respiratory failureand increased heart rate. Blood, urine and cerebrospinal fluid weresent for bacterial culture. The cerebrospinal fluid showed markedincrease in leukocytes, proteins and the presence ofnumerous Gram-negative diplococci. Which bacteriumis the most likely causative agent of meningitis andsepticemia in this patient?
a.
Bordetella pertussis
b.
Neisseria meningitidis
c.
Haemophilus influenza
d.
Escherichia coli
e.
Yersinia pestis
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