Posted: July 24th, 2017

A 1-day-old newborn is evaluated for possible sepsis. Blood cultures grow gram-positive cocci in pairs and chains that agglutinate with group B antiserum. The most likely epidemiologic risk factor for this infection involves bacterial colonization of which of the following?

A 1-day-old newborn is evaluated for possible
sepsis. Blood cultures grow gram-positive cocci
in pairs and chains that agglutinate with group B
antiserum. The most likely epidemiologic risk
factor for this infection involves bacterial
colonization of which of the following?
(A) Mother’s vagina
(B) Newborn’s gastrointestinal tract
(C) Newborn’s nasopharynx
(D) Placenta
(E) Umbilical cord remnant