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Introduction 

Introduction
Chapter:
Introduction
Author(s):

Gary W. Brunette

and Jeffrey B. Nemhauser

DOI:
10.1093/med/9780190928933.003.0001
Page of

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date: 25 November 2020

Introduction to Travel Health & the CDC Yellow Book

Phyllis E. Kozarsky, Ronnie Henry

Travel Epidemiology

Allison Taylor Walker, Regina C. LaRocque, Mark J. Sotir

Why Guidelines Differ

David R. Shlim

The number of people traveling internationally continues to grow. According to the World Tourism Organization, there were 1.33 billion worldwide international tourist arrivals in 2017, an increase of 88% from 2015. International arrivals increased 6% in January–April 2018 compared to the same period in 2017. In 2017, US residents made nearly 88 million trips with at least 1 night outside the United States....

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