Here some related data. Although not directly answer your questi

1) http://www.cdc.gov/cancer/hpv/statistics/cases.htm

Each year, about 38,793 new cases of cancer are found in parts of the body where human papillomavirus (HPV) is often found. HPV causes about 30,700 of these cancers.

2) https://www.cdc.gov/media/releases/2013/p0619-hpv-vaccinations.html

“This report shows that HPV vaccine works well, and the report should be a wake-up call to our nation to protect the next generation by increasing HPV vaccination rates,” said CDC Director Tom Frieden, M.D., M.P.H.  “Unfortunately only one third of girls aged 13-17 have been fully vaccinated with HPV vaccine.  Countries such as Rwanda have vaccinated more than 80 percent of their teen girls. Our low vaccination rates represent 50,000 preventable tragedies – 50,000 girls alive today will develop cervical cancer over their lifetime that would have been prevented if we reach 80 percent vaccination rates.  For every year we delay in doing so, another 4,400 girls will develop cervical cancer in their lifetimes.”
 

請您先登陸,再發跟帖!