Maternally derived Streptococcus mutant disease is:
**Core Concept**
The question is testing the student's knowledge of Neonatal Sepsis, specifically the role of maternally derived bacteria in causing disease in newborns. Streptococcus mutans is a type of bacteria that is commonly found in the oral cavity of humans.
**Why the Correct Answer is Right**
Streptococcus mutans is a gram-positive coccus that can cause neonatal sepsis when transmitted from the mother to the baby during childbirth. The bacteria can colonize the baby's mouth and throat, leading to infection. This type of transmission is a classic example of vertical transmission, where the pathogen is passed from parent to child.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, but typically, other Streptococcal species such as Group B Streptococcus (GBS) are more commonly associated with neonatal sepsis.
**Option B:** E. coli is a gram-negative rod that is more commonly associated with urinary tract infections and other types of bacterial sepsis.
**Option C:** Listeria monocytogenes is a gram-positive rod that can cause neonatal sepsis, but it is not the correct answer in this case.
**Clinical Pearl / High-Yield Fact**
Neonatal sepsis is a serious condition that requires prompt recognition and treatment. Maternally derived bacteria are a common cause of neonatal sepsis, and healthcare providers should be aware of the risk factors and take steps to prevent transmission during childbirth.
**Correct Answer: C. Streptococcus mutans**