Which is NOT a risk factor for neonatal Group B Streptococcus?

Neonatal Group B Streptococcus (GBS) infection has several established risk factors that increase the likelihood of transmission from mother to newborn. The option stating "normal maternal body temperature during labor" is not a recognized risk factor for neonatal GBS infection.

In fact, a normal maternal temperature does not correlate with an increased risk of GBS colonization or infection in the infant. On the contrary, certain factors, like a fever in labor, can raise suspicion for potential infections, including GBS, leading to more vigilant management and screening.

Other factors mentioned, such as age less than 20 years, prior positive culture, and late prenatal colonization, are established risk factors. Younger maternal age is associated with a higher prevalence of GBS colonization, and a prior positive culture indicates a past risk that suggests the possibility of current colonization. Late prenatal colonization increases the likelihood that GBS could be present at the time of delivery, which poses a risk for the newborn.

Understanding these aspects ensures better management during labor to mitigate the risk of neonatal complications due to GBS.