OverviewDifferent areas of the world have different diseases and different prevalence rates of diseases. Travelers going to foreign countries may encounter diseases to which they have no natural immunity and should take any possible precautions.
Update Date 2/9/2014
Updated by: Daniel Levy, MD, PhD, Infectious Diseases, Lutherville Personal Physicians, Lutherville, MD. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.