The Truth About Teens, Sex and Vaccines.

Safe Sex
At least one of the arguments used by conservative Republican presidential candidates to criticize Texas Gov. Rick Perry's attempt to mandate that girls get vaccinated against the sexually transmitted infection HPV is wrong, experts say.
Perry's 2007 attempt to mandate the vaccine in Texas girls failed, in large part because conservative groups argued that inoculating girls against human papilloma virus, a sexually transmitted infection that can lead to cervical cancer, might send the message that teen sex is okay. But sexual educators say that there's no evidence that a shot will lead to promiscuity. [Top 10 Stigmatized Health Disorders.
"Teenagers, by and large, have sex episodically," said Bill Albert, a spokesman for The National Campaign to Prevent Teen and Unplanned Pregnancy. "It has much more to do with opportunity than it does with a vaccination, for heaven's sake."
In addition, Albert told LiveScience, teen sexual activity has been decreasing over the last four years. Gardasil, drugmaker Merck's vaccine against HPV, was approved by the Food and Drug Administration in 2006. (Since then, in 2009, the FDA approved another HPV vaccine called Cervarix, manufactured by GlaxoSmithKline.) There have not been direct studies on the effect of HPV vaccination on teen sexual decisions, Albert said, but dropping rates of sexual activity since the vaccine's introduction suggest that the injections aren't causing teens to throw caution to the wind.
"It hasn't had the undesired effect yet," he said.
Vaccine controversy
http://www.foxnews.com/health/2011/09/16/truth-about-teens-sex-and-vac
The Gardasil vaccine protects against two strains of HPV that cause most genital warts and two strains that cause most cases of cervical cancer, a disease that kills about 4,000 women in the 
In 2007, Perry issued an 
The decision came back to haunt Perry at Monday (Sept. 12) night's 
Vaccines and teen sex
Parents often underestimate the extent to which their 
But studies also show a widespread belief that getting the vaccine will actually encourage teens to start having sex early or with more partners. A 2008 study in the Journal of Adolescent Health asked almost 700 moms and teen girls in the 
But when asked about their own behavior, the teenagers were much less likely to say Gardasil would make a difference: 31.6 percent said other girls would be more likely to have sex, but only 16.9 percent said the same about themselves. Even more strikingly, 37.5 percent predicted that most girls would be less likely to use protection after vaccination, but only 8.4 percent said they themselves would be less likely to use protection after getting the vaccine. The study only looked at perceptions, not actual behavior, the researchers wrote, but it could be that both adults and teens underestimate other people's ability to 
Influencing teens
While there are no studies investigating vaccinated and unvaccinated teens' actual behaviors, there is a parallel line of research on the effect of making condoms freely available to teenagers. Those studies have turned up no evidence that condom availability increases sexual activity.
A 1999 study published in the American Journal of Public Health found that in Seattle schools that instituted free condom programs, the percentage of high school students who had ever had sex remained stable after the programs began, and the percentage of currently sexually active students actually declined slightly. A similar study, published in 2003 in the same journal, looked at high school students in Massachusetts and found no link between condom availability and the likelihood a student would have sex. Those who were sexually active, however, were more likely to protect themselves with condoms.
Certain factors do influence whether teens start having sex early, Albert said, including dating an older partner. But the largest influence on teen's sexual decisions lies not with Perry or within a vaccine syringe, he said.
"Teens tell us in surveys and studies that it is parents that most influence their decisions about sex," Albert said. "Not the media, not popular culture, not their partners, not even politics. It is parents that teenagers say matter most. So I hope that in the din of the most recent political dust-up that parents stay focused on the fact that they matter a lot when it comes to their kids' decisions about sex, whether they know it or not."


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