This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aetiological factors, Subject name: Gynaecology & Obstetrics
Cervarix vaccine for HPV contains which strains of virus? 
Select and explain. 
A. HPV 6, 11, B. HPV 16, 18, C. HPV 6, 11, 16, 18, D. HPV 16, 18, 31, 33
B: HPV 16, 18
Answer: B: HPV 16, 18 
Explanation: Ans. is 'b' i.e., HPV 16, 18 o Two vaccines are available:# Bivalent vaccine: Cervarix (HPV 16, 18)# Quadrivalent vaccine: Gardasil (HPV 6, 11, 16, 18)