This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Gonococcus can infect all except 
Select and explain. 
A. Cervix, B. Vagina, C. Bartholin gland, D. Fallopian tube
B: Vagina
Answer: B: Vagina 
Explanation: Gonococci is gram negative cocco bacillus that invades columnar and transitional epithelial cells, becoming intracellular. Vaginal epithelium, which is squamous cell is not involved.