books.google.ca - International and regional travel continues to grow; in recent years, disaster relief teams have joined the traditional ranks of travelers and face exposure to both commonplace and more exotic travel-associated infectious agents as a consequence of deteriorating and uncertain environmental conditions....http://books.google.ca/books/about/Travelers_Vaccines.html?id=BKRpWFEy66wC&utm_source=gb-gplus-shareTravelers' Vaccines
