This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
In neonate with meningitis, gram positive cocci, CAMP test positive most common source of infection is _________ 
Select and explain. 
A. Genital tract, B. Respiratory tract, C. Hematogenous, D. May be any
A: Genital tract
Answer: A: Genital tract 
Explanation: The causative organism in this case is Streptococcus agalactiae ( Group B Streptococcus )- CAMP test positive. The most common source of infection is maternal genital tract. The neonate acquires the microorganism as it passes through the colonized bih canal at delivery. Reference: GHAI Essential pediatrics, 8th edition