I do suggest clients visit the government of Canada's informational website for Travel Health Advice here: http://www.phac-aspc.gc.ca/tmp-pmv/index-eng.php
ZIKA - as you've heard in the news lately, the Zika virus is circulating through the Caribbean plus the warmer southern USA states.
Both the CDC and the Canadian Government recommend a [practice special precautions] by protecting yourself from mosquito bites and discussing with your health professional particularly if you intending to travel while pregnant. Websites to visit for additional info:
1) Canada: http://travel.gc.ca/travelling/health-safety/travel-health-notices/143
2) CDC: http://www.who.int/mediacentre/factsheets/zika/en/