From CTV News:
The human papilomavirus (HPV) vaccine is up to 20 times more likely than other school-based vaccines to cause anaphylaxis, according to a study released Monday.
Anaphylaxis is a severe allergic reaction. Symptoms include difficulty breathing, nausea and rashes, but can be treated easily if identified early.
Last year Ontario, Nova Scotia, Prince Edward Island and Newfoundland launched HPV vaccination programs in schools, and more provinces are slated to begin programs in September. The massive campaign has had some parents asking questions about the safety of the vaccine.
The Australian rate of anaphylaxis in women following HPV vaccination is 2.6 per 100,000 doses. For most other vaccines the rate is 1 per million.
Dr. Julia Brotherton, lead author of the study, published in the Canadian Medical Association Journal, said some women may be allergic to the vaccine components. So far researchers haven't found which parts of the vaccine are causing the reactions. ...more
Tuesday, September 02, 2008
HPV vaccine shows higher rate of anaphylaxis: study
Labels:
adverse drug reactions,
Gardasil,
HPV,
research
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