HPV 16 is one of the HPV strains classified as a high-risk type that induces changes in the cells of the cervix. Those alterations can be viewed on a Pap smear as abnormal. HPV 16 often involves additional infections such as lichen sclerosis. Sometimes HPV 16 can clear up on its own without the need for treatment. However, in other cases, the changes in the cells of the cervix can develop into significant abnormalities, which may or may not lead to cervical cancer. This happens in some cases when the cervix is not treated. HPV 16 can also lead to vaginal, vulval, anal, and penile cancers or benign growths in these places. HPV 16 is one of the four main types of HPV that causes cervical cancer. HPV 16 is a virus connected to cervical cancer and is the biggest cause of cervical cancer.
A vaccine that was developed against HPV 16 seems to be successful, and as such enthusiasm abounds about the possibility of cervical cancer being prevented. This could save lives. In turn, this would also get rid of a big cause of cancer death in huge portions of the world. This observation was made by an epidemiology teacher of Washington Universityís School of Community Medicine and Public Health named Dr. Laura Koutsky. The vaccine protects against recurring infection over a time frame of two to four years. This vaccine was developed and paid for by the Merck Research Laboratories for the sole purpose of preventing the infection of HPV 16. However, vaccines for HPV 16 might not protect a person again other strains of HPV, such as HPV 18 or 33.
There also exist other forms of HPV 16. HPV 16 accounts for almost half of the instances of cervical cancer in Europe and the United States. Cervical cancer develops at the opening of the womb. Homosexual men are also known to carry HPV 16. HPV 16 is a common type of HPV, and approximately twenty percent of the adult population is infected with HPV 16. In most cases of HPV 16, there are no symptoms. I person may not even be aware that they have it.
HPV 16 may sometimes cause flat warts called condyloma planum. Flat warts may appear almost invisible. Other types of HPV 16 warts are raised and look a little like cauliflower under the skin. With this type of wart, there isnít a lot of growth in the vein and capillary area.
There was a study completed in the United States on women ages sixteen to twenty-three at sixteen different places. None who received the vaccine were at risk for HPV 16, versus the placebo, where some were at risk. In other words, there were no cases of HPV 16 infection in those women who received the vaccine. Forty-one women in the placebo group tested positive for HPV 16. Nine had HPV 16-related cervical intraepithelial neoplasia or LIN, which is a cervical precancerous lesion. These growths can stick around for a long time before becoming invasive cancer. Alternately, they may go away completely and not even turn into cancer at all. The vaccine seems to prevent HPV 16 from staying in the genital tract where it could be transmitted to a sexual partner.
Vaccines can be important in countries where Pap smears are not done on a regular basis. It would reduce cervical cancer deaths. Most times in the United States, cervical cancer from HPV 16 is prevented from Pap smears as well as eliminating the need for the diagnosis and treatment of precancerous cervical lesions. However, vaccines are still helpful as they reduce the number of abnormal Pap smears, colposopies, biopsies, and treatments. Treatments are not dangerous, but they may be costly, monetarily. Most cases of abnormal Pap smears do not result in cancer, but the worry is there. In the entire world, there are more than 450,000 cases of cervical cancer each year.
HPV 16 can incubate in the body for a long time before developing into cervical cancer. The average length of time for women who have HPV 16 is seven to twelve years. About twenty million United States residents develop HPV 16. Each year there are five and a half million new HPV 16 infections.
The Center for Disease Control or the CDC did a study on the prevalence of HPV 16 in the United States. Prevalence refers to the total number of cases of a disease in a given population at a specific time. Twice as many women develop it as men. Women of all races had a 17.9 percent prevalence, while men of all races had an 8% prevalence. African Americans had a prevalence of 20 to 29 percent as Caucasians had a prevalence of 12.5 percent. The prevalence was higher the more sex partners one had, as that obviously increases your risk. Those who had fifty or more sex partners had a frequency of 20.1 percent. For those with only one life partner, the rate showed 7 percent. Thirteen percent of the population of the study carried HPV 16 antibodies. However, not all people develop detectable antibodies.
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