To: J_F_Shepard who wrote (529966 ) 11/17/2009 5:37:16 PM From: longnshort Read Replies (1) | Respond to of 1576180 36 serious reactions to H1N1 vaccine: Top health official By Meagan Fitzpatrick, Canwest News Service OTTAWA — Thirty-six Canadians have experienced serious adverse reactions following their H1N1 vaccination, the country's chief public health officer reported Tuesday. Dr. David Butler-Jones said the events, including one death, are being investigated to determine if they were related to the vaccine directly, or if they were actually caused by another factor. "It's important to remember that just because a medical event follows vaccination it may not have been caused by the vaccine," Butler-Jones told a news briefing. The death was in an elderly person who suffered anaphylaxis, or a serious allergic reaction. Of the serious reactions, most were allergic reactions, fever and convulsions. The 36 serious reactions were out of 6.6 million vaccinations and Butler-Jones said the rate of serious reactions to the H1N1 vaccine is less than what is normally seen with the seasonal vaccine. The chief public health officer said serious adverse events are expected during any mass immunization program, that they are rare and that the benefits of vaccination outweigh any risks. "Canadians can be assured that, to date, the frequency of serious reactions is less than one per 100,000 doses distributed, which is what we've seen with other vaccines," he said. Serious adverse events are reactions that cause life-threatening illness, hospitalization, disability or death. Minor side effects of the H1N1 vaccine have included nausea, dizziness, headache, fever and soreness at the injection site. Butler-Jones said that based on the number of doses that have been distributed and the rate at which provinces have been able to administer them, an estimated 20 per cent of Canadians have received the H1N1 vaccine. © Copyright (c) Canwest News Servicecanada.com