HPV and Oropharyngeal Cancer

https://www.cdc.gov/cancer/hpv/basic_info/hpv_oropharyngeal.htm
Last autumn and winter I took some Coursera free classes in the medical field.  One I finished—medical statistics, and one I didn’t—gut microbiome. It was just too gross.  So I continue to get announcements to entice me to try again, something in the medical field.  Today it was HPV and Oropharyngeal Cancer.  I knew only a little about it—with the increased acceptance of oral sex, it has put many in danger of a disease they couldn’t have imagined in the pre-Monica days of “it’s not really sex.”
Here’s what CDC says it is, without ever suggesting that oral sex not be practiced:
“HPV is the most common sexually transmitted infection in the United States. Of the more than 100 types of HPV, about 40 types can spread through direct sexual contact to genital areas, as well as the mouth and throat. Oral HPV is transmitted to the mouth by oral sex, or possibly in other ways. Many people are exposed to oral HPV in their life. About 10% of men and 3.6% of women have oral HPV, and oral HPV infection is more common with older age. Most people clear HPV within one to two years, but HPV infection persists in some people.”
Because it takes years for the problems to develop, CDC recommends that 11- to 12-year-old boys and girls get two doses of HPV vaccine, although there are no studies to show it actually prevents these cancers
This fact sheet is a little more graphic and explicit.  https://www.cdc.gov/std/healthcomm/stdfact-stdriskandoralsex.htm