Travel Health - Before You Go
Get needed vaccines and medicines continued...
More immunizations may be needed depending on the area you are visiting, how long you will be there, and the purpose of your journey. For example, if you will be trekking in rural Asia for a month or longer, you may need a vaccine for Japanese encephalitis(What is a PDF document?).1
A vaccine for traveler's diarrhea and cholera, called Dukoral, has been approved in Canada and Europe. But it is not available in the United States.
To learn more, see the topic Immunizations.
Ask about a prescription for antimalarial drugs if you will be visiting an area that has malaria. This includes large areas of Central and South America, Haiti and the Dominican Republic, Africa, the Indian subcontinent, East Asia, Southeast Asia, the Middle East, and many South Pacific islands.
You may need to take one of several different preventive medicines, depending on the type of malaria parasite in that part of the world. These medicines need to be taken daily during your travels and for a specified time after you return. It is important to take all the tablets you were given. This may mean taking antimalarial tablets for several weeks after you get home.