Media coverage of the recently introduced human papillomavirus
(HPV) vaccine—including talk of state-mandated vaccination
programs—has brought considerable attention, if not
always clarity, to this issue. Although the vaccine
represents a major medical breakthrough, there is reason
to be cautious. The benefits and risks of the new HPV
vaccine aren’t fully known, reports the August 2007
issue of Harvard Women’s Health Watch.
Gardasil, the new vaccine, has been shown to protect
against four types of HPV that are sexually transmitted
and thought to cause most cases of cervical cancer
and genital warts. But it won’t protect against the
nearly one dozen other types of HPV associated with
cervical cancer, and it won’t protect against any type
that a girl or young woman has encountered before vaccination.
So women will still be at some risk even after they’ve
been vaccinated, and they’ll still need regular cervical
cancer screening with Pap smear testing. Moreover,
they will still need to take precautions against other
sexually transmitted diseases.
The HPV vaccine is a medical achievement that could
save thousands of lives annually worldwide, but it
is not a perfect answer to cervical cancer. There are
still questions about the vaccine’s safety and effectiveness
beyond five years, especially in girls ages 11 and
12—the age group targeted for vaccination by health
officials.
The bottom line? Certainly the new HPV vaccine shows
great promise. But given the many unanswered questions
about its effectiveness and safety, the Harvard
Women’s Health Watch suggests its use should be
more a matter of individual choice than government
mandate.