New Evidence Cervical Cancer Vaccine Works
Gardasil Protects Against Strains Of HPV That Cause Most Cases Of The Disease
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HPV Vaccine & Cancer
Dr. Emily Senay sits down with Julie Chen to discuss growing medical evidence that the controversial human papilloma virus vaccine, Guardasil, may help prevent cervical cancer.
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HPV Vaccine A Success
A new study in the New England Journal of Medicine found that the first HPV vaccine on the market has been effective in preventing the onset of cervical cancer. WebMD's Sandee Lamotte reports.
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The Early Show medical correspondent Dr. Emily Senay explains that Merck's Gardasil is meant to fight off certain strains of human papilloma virus (HPV), which is known to cause cervical cancer.
Though it remains controversial, there's fresh research that Gardasil is effective in fighting off HPV, Senay says, and the news appears to provide even more reason for young girls to be vaccinated, as the federal Centers for Disease Control and Prevention and other experts recommend.
HPV is spread through sexual contact, and the strains the vaccine wards off are responsible for about 70 percent of cervical cancer cases, so getting vaccinated can significantly lower a woman or girl's risk of developing the cancer, Senay continues.
Early studies of the vaccine showed it to be so valuable in fighting cervical cancer that the Food and Drug Administration gave it fast track approval last June.
Clinical trials continued, Senay says, to confirm that everything was as it should be, and apparently it is. Among previously uninfected patients who received the vaccine, the protection rate after three years was 98 percent, according to results published in the New England Journal of Medicine. So the strains of the virus that account for seven-in-10 cervical cancer cases were effectively stymied.
The CDC recommends vaccination for all girls 11- and 12-years-old. Girls as young as 9 are eligible to receive it. Girls and women from age 13 to 26 are also urged to get it, if they still haven't been vaccinated. The exception to those guidelines involves women who are pregnant. They should wait until after the baby is born to be vaccinated.
The younger a woman or girl is, Senay notes, the greater the chance she isn't already infected with HPV. It's simple probability: The older she is, the more sexual encounters she is likely to have had, and that means more opportunities to contract the virus.
Senay stresses that the vaccine does nothing against infections that are already present. Its effectiveness is for patients who are virus-free. So, getting vaccinated while it's still early enough for the vaccine to do some good is important.
The age of the girls involved and the connection of the vaccine to sexual activity are contributing to an ongoing controversy over whether states and localities should mandate that they get Gardasil.
Senay also observed that, if a woman is vaccinated before she's sexually active, or at least before she's infected, she still can't be worry-free about getting cervical cancer. Roughly 30 percent of cervical cancers come from strains of HPV that are not diminished by this vaccine. So, no one should let her guard down. The American Cancer Society recommends cervical cancer screening, including a pap test, within three years of a woman's first intercourse, or by age 21, whichever comes first. Depending on the kind of pap test used, screening should continue either annually or every-other year.
After age 30, if tests haven't detected a problem, they can be spaced out even more. After age 30, women can also combine their pap tests with a second test that specifically detects the presence of HPV. The bottom line is to keep getting screened, because there's still a risk of developing the cancer. But all signs point to that risk diminishing sharply, if girls or young women have been vaccinated.
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by gaye5
May 11, 2007 7:13 AM PDT
- afmca, had you thought that maybe this is one of the reasons that God told the people to abstain from *** until marriage.. could it be that time has proven that not having *** before marriage and not committing adultery stopped all sexually transmitted diseases???. Could it be that time has proven that children are traumatised for life when a marriage breaks up..
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See all 19 CommentsI dont think that these laws which were set down 4000 years ago are to stop us having fun butare there for our protection and for the security of our children, to stop disease and heartache... but today all this is counted unrealistic, but when eventually we wake up to the problems and deaths that happen from people having many partners and the damage which is done from adultery we might turn back the clock, hopefully not tooo far, I would hate to have lived in the Victorian days...but feel that we have gone far tooo far now... the world if full of damaged children which will eventually come back to bit us..
Neither my husband or I had had other partners before we were married, and after all these years I still love and respect him and so do our children..our children all wanted to marry virgins as they said that they didnt want used property.
now that will pull a lot of howls, screams etc.. but we are both very healthy and seem to never be sick, and they tell us that we look 10 years younger than we are.. mind you we also dont have immunisations.