The Medical Letter on Drugs and Therapeutics
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1466
Advice for Travelers
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Patients planning to travel to other countries often ask for information about prevention of diarrhea, malaria, and other travel-related conditions. Vaccines recommended for travelers based on their destination, length of stay, and planned activities were reviewed in a previous issue.1

TRAVELERS' DIARRHEA

The most common cause of travelers' diarrhea, usually a self-limited illness lasting several days, is infection with noninvasive strains of Escherichia coli. Infections with other types of bacteria such as Campylobacter jejuni, Shigella spp., and Salmonella spp., viruses, and parasites are less common. In recent years, norovirus has become a more frequent cause of diarrhea in travelers; according to one study, norovirus infection was detected in 16% of US travelers returning from Mexico with diarrhea. ... more      

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