AP
Gardasil, a genetically engineered vaccine, prevents cervical cancer by blocking infection with the two viruses that together cause about 70 percent of cervical cancers. HPV 16 and 18, both sexually transmitted viruses, are two of the 100-plus types of human papilloma virus.
Other types of HPV also can cause cervical cancer and painful genital warts. About 20 million Americans have some form of HPV.
More...
|