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Byline: Warren King
Nov. 21--A new vaccine against a major cause of cervical cancer has proved 100 percent effective in early testing, offering hope of preventing the second-leading cancer killer of women worldwide.
In research reported today, University of Washington scientists and their colleagues found that a Merck-developed vaccine gave complete protection against the sexually transmitted human papillomavirus (HPV) that causes half of all cervical cancers.
"It is a huge breakthrough. ... Now we can eventually see the day when we don't have to worry about deaths from cervical cancer," said Dr. Laura Koutsky, UW professor of epidemiology and principal investigator on the project.
If the vaccine continues to prove effective in a larger clinical trial, it would be a historic accomplishment in cancer prevention. Until now, the only vaccine ever proved effective in stopping a cancer-causing virus is the immunization against hepatitis B, which causes liver cancer.
The HPV-vaccine research is reported in today's edition of…