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What are the cancer causing strains and what does Gardasil & Cervarix HPV vaccines protect against?

April 26, 2017cancer causing cervarix HPV protect strains vaccines

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What are the cancer causing strains and what does Gardasil & Cervarix HPV vaccines protect against?

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At this moment in time there are about 13 strains of the Human Papilloma Virus group of viruses that cause cervical cancer. There are over 90 strains of HPV but most of them are harmless and infect other parts of the body or other animal species. Gardasil HPV vaccine has 4 of the most common cancer causing HPV strains namely type 6, type 11, type 16 and type 18. Cervarix prevents infection with type 16 & 18 only. It is estimated that these two strains cause 72-75% of cervical cancer cases.