http://www.phac-aspc.gc.ca/tmp-pmv/index-eng.php Public Health Agency of Canada (PHAC) Travel Health website.
PHAC is responsible for providing the following travel health information for persons travelling outside of Canada:

bullet current information on international disease outbreaks
bullet immunization recommendations for international travel
bullet general health advice for international travellers
bullet disease-specific treatment and prevention guidelines
www.istm.org The International Society of Travel Medicine.
This website provides a forum for communication among travel health professional’s worldwide.
www.who.int World Health Organization.
This website provides up to date information on current events that effect travel health.
www.cdc.gov/travel/ Communicable Disease Control (U.S. Dept of Health and Human Services)
This website provides up to date information on outbreaks, recommended vaccinations for international travel and travel health advice.
http://immunizealberta.ca/ Alberta Health Services Immunization Information Page