Monday, October 31, 2005
First, Plan B and now cervical cancer vaccine . . . . According to the Washington Post, some members of the abstitence movement have made know that they have some concerns about a new cervical cancer vaccine. The Post states,
A new vaccine that protects against cervical cancer has set up a clash between health advocates who want to use the shots aggressively to prevent thousands of malignancies and social conservatives who say immunizing teenagers could encourage sexual activity.. . . .
The vaccine protects women against strains of a ubiquitous germ called the human papilloma virus. Although many strains of the virus are innocuous, some can cause cancerous lesions on the cervix (the outer end of the uterus), making them the primary cause of this cancer in the United States. Cervical cancer strikes more than 10,000 U.S. women each year, killing more than 3,700.
The vaccine appears to be virtually 100 percent effective against two of the most common cancer-causing HPV strains. Merck, whose vaccine is further along, plans to ask the Food and Drug Administration by the end of the year for approval to sell the shots.
Exactly how the vaccine is used, however, will be largely determined by the Advisory Committee on Immunization Practices, a panel of experts assembled by the Centers for Disease Control and Prevention in Atlanta. The panel issues widely followed guidelines, including recommendations for childhood vaccines that become the basis for vaccination requirements set by public schools.
Officials of both companies noted that research indicates the best age to vaccinate would be just before puberty to make sure children are protected before they become sexually active. The vaccine would probably be targeted primarily at girls but could also be used on boys to limit the spread of the virus.
"If you really want to have cervical cancer rates fall as much as possible as quickly as possible, then you want as many people to get vaccinated as possible," said Mark Feinberg, Merck's vice president of medical affairs and policy, noting that "school mandates have been one of the most effective ways to increase immunization rates."
That is a view being pushed by cervical cancer experts and women's health advocates.
"I would like to see it that if you don't have your HPV vaccine, you can't start high school," said Juan Carlos Felix of the University of Southern California in Los Angeles, who leads the National Cervical Cancer Coalition's medical advisory panel.
At the ACIP meeting last week, panel members heard presentations about the pros and cons of vaccinating girls at various ages. A survey of 294 pediatricians presented at the meeting found that more than half were worried that parents of female patients might refuse the vaccine, and 11 percent of the doctors said they themselves thought vaccinating against a sexually transmitted disease "may encourage risky sexual behavior in my adolescent patients."
Conservative groups say they welcome the vaccine as an important public health tool but oppose making it mandatory.
"Some people have raised the issue of whether this vaccine may be sending an overall message to teenagers that, 'We expect you to be sexually active,' " said Reginald Finger, a doctor trained in public health who served as a medical analyst for Focus on the Family before being appointed to the ACIP in 2003, in a telephone interview.
"There are people who sense that it could cause people to feel like sexual behaviors are safer if they are vaccinated and may lead to more sexual behavior because they feel safe," said Finger, emphasizing that he does not endorse that position and is withholding judgment until the issue comes before the vaccine policy panel for a formal recommendation.