If you are going to some exotic locale, check to see if you require additional inoculations, hepatitis shots or other medications such as malaria pills to deal with bacteria or viruses specific to that country. These are sometimes required up to 6 weeks in advance. There are special clinics set up that will advise a traveller of medical precautions for the desired countries.

Research “travel medication clinic” on the web for your city or ask for a referral from your doctor.

Find out as much as you can about health advisories for your destination before you leave.