Vaccine advocate highlights concerns over publication
I am pleased that your reporter Gail Johnson included my comments about the benefits of the human papillomavirus vaccine in her article [“ Researchers advocate HPV vaccine scrutiny”, November 1-8].
I want to provide some new information that confirms my concerns about the research methods used by Lucija Tomljenovic and Chris Shaw for their paper regarding the deaths of two young women who had received the HPV vaccine. This paper has now been reviewed by the U.S. Clinical Immunization Safety Assessment (CISA) network, which is a Centers for Disease Control–funded network established in 2001 with six participating medical research centres involved in immunization-safety assessment.
The CISA has concluded that there are a number of methodological flaws with the publication and that it lacks the evidence to support the authors’ conclusions. This assessment is available on the Centers for Disease Control website at www.cdc.gov/ under “vaccine safety technical reports”.
Numerous credible studies have shown that both HPV vaccines used in Canada are safe and highly effective. The vaccine is estimated to prevent about 70 percent of cancers to the cervix.
I encourage all girls eligible for the school program who are in grades 6 through 12 in B.C. and young women born in 1991, 1992, and 1993 to get vaccinated against HPV infection.
> Dr. Monika Naus / Medical Director, Immunization, B.C. Centre for Disease Control