Knowing how to prepare for overseas travel becomes more important day-by-day--what vaccines do you need and how to avoid mosquito borne illness are just two critical components to safe travel.

My guest today is Christopher Sanford, MD. Dr Sanford is an associate professor of global health and of family medicine at the University of Washington, a family practice physician an the coordinator of seven travel clinics with in the University of Washington system.

He is also the author of the new book, Staying Healthy abroad--A global travelers guide.