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Malaria Prophylaxis in High-Risk Travelers

Arch Intern Med. 1990;150(4):916. doi:10.1001/archinte.1990.00390160156043.
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To the Editor. —I read the article by Hilton et al1 with great interest. Our group has been interested in the subject of malaria prophylaxis in high-risk travelers since 1977.2-4 The data that we gathered in 1977 and 1981 differ from those of Hilton and coworkers' group. We did direct interviews of 89 subjects during foreign travel in Central and South America. Their average age was 42 years; they were backpackers or tour group members who were traveling for periods of 2 weeks to 2 months. Only 55% to 67% received any information on malaria prophylaxis, and over all, only 15% were taking chloroquine in 1977 and only 30% were taking chloroquine in 1981. The increase was not statistically significant. If one only considered those obtaining proper information prior to travel, 70% complied with malaria prophylaxis during travel in 1981. We do not know how many continued to


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