Microbiology Quadrivalent HPV vaccine protects against: A HPV 6.11,16.18 B HPV 6, 11, 31. 32 C HPV 16 18, 31.35 D HPV 11, 16. 30. 33 💡 Explanation Quadrivalent HPV vaccine protects against: ✓ Correct Answer: A. HPV 6.11,16.18