Question

A 14-day-old baby is admitted to the hospital with a fever, hyperactivity, and a stiff neck. At the time of giving birth, the mother complained of flu-like symptoms. Blood and cerebrospinal fluid (CSF) were collected from the baby for culture. No organisms were seen in the gram stain of the CSF; however, the culture of blood and CSF became positive after 48 hours of incubation. Colonies appeared weakly beta-hemolytic, and the gram stain showed gram-positive cocci arranged in single cells and chains. A) Which organism is responsible for the baby's infection? B) Why is this organism the leading cause of neonatal sepsis?

          A 14-day-old baby is admitted to the hospital with a fever, hyperactivity, and a stiff neck. At the time of giving birth, the mother complained of flu-like symptoms. Blood and cerebrospinal fluid (CSF) were collected from the baby for culture. No organisms were seen in the gram stain of the CSF; however, the culture of blood and CSF became positive after 48 hours of incubation. Colonies appeared weakly beta-hemolytic, and the gram stain showed gram-positive cocci arranged in single cells and chains. A) Which organism is responsible for the baby's infection? B) Why is this organism the leading cause of neonatal sepsis?

Added by Remedios F.

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