Gardasil is considered a recombiant vaccine that protects against the human papilloma virus types 6, 11, 16, and 18. It helps protect against two types of the virus that cause around 75% of cervical cancer cases. Gardasil also protects against two more types of the virus that account for 90% of cases involving genital warts. The vaccine is given in three separate installments over the course of six months. The vaccine does not guarantee protection against cervical cancer.