Earlier this week, the country's chief public health officer, Dr. David Butler-Jones, noted that of the 6.6 million doses of H1N1 vaccine given so far to Canadians, there have been 36 serious adverse reactions reported.
Most involved allergic reactions that began within minutes of vaccination. All were treated promptly by medical people at the vaccination site.
Milder side effects, such as nausea, soreness, headaches and fever, have also been seen, which is not unexpected. Seasonal flu vaccines have been known to cause such reactions every year.
One person is believed to have died from an anaphylactic reaction following vaccination, but Butler-Jones stressed the death hasn't been conclusively linked to the flu shot. http://www.ctv.ca/servlet/ArticleNews/story/CTVNews/20091119/Flu_Reaction_091119