Please note that there are currently severe shortages of inject able Typhoid vaccine and Yellow fever vaccine in the province in Ontario.
To ensure your best chances of receiving either of these vaccines if you need them , it is best to visit a travel clinic as early as possible. If the vaccine is not available at the time , your name can be put on a waiting list to receive the vaccine in priority.
Also note that Yellow Fever vaccine is a mandatory requirement for entry to certain countries