Natural history of neonatal colonization with group B streptococci.
Thirteen percent of the newborns in our study group were colonized with group B streptococci on day 3. This colonization rate appeared constant during the first two weeks of life and then decreased to 5%. Of the babies colonized on day 3, 59% and 91% were culture-negative on days 14 and 42, respectively. Sixty-five percent of the babies carrying group B streptococci on day 14 acquired this microorganism following discharge (day 3). Babies colonized with staphylococci or Escherichia coli were found to have decreased probability of colonization with group B streptococci.
D004926:Escherichia coli / Q000302:isolation & purification; D006801:Humans; D007231:Infant, Newborn; D013210:Staphylococcus / Q000302:isolation & purification; D013211:Staphylococcus aureus / Q000302:isolation & purification; D013292:Streptococcus agalactiae / Q000302:isolation & purification*; D013997:Time Factors