Dengue risk among visitors to Hawaii during an outbreak |
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Authors: | Smith Carrie E Tom Tammy Sasaki Jed Ayers Tracy Effler Paul V |
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Institution: | Hawaii State Department of Health, Honolulu, Hawaii 96813, USA. |
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Abstract: | Despite the high rates of dengue in many tropical destinations frequented by tourists, limited information is available on the risk for infection among short-term visitors. We retrospectively surveyed 4,000 persons who arrived in Hawaii during the peak of the 2001-2002 dengue outbreak and collected follow-up serologic test results for those reporting denguelike illness. Of 3,064 visitors who responded, 94 (3%) experienced a denguelike illness either during their trip or within 14 days of departure; 34 of these persons were seen by a physician, and 2 were hospitalized. Twenty-seven visitors with denguelike illness provided a serum specimen; all specimens were negative for anti-dengue immunoglobulin G antibodies. The point estimate of dengue incidence was zero infections per 358 person-days of exposure with an upper 95% confidence limit of 3.0 cases per person-year. Thus, the risk for dengue infection for visitors to Hawaii during the outbreak was low. |
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Keywords: | Arboviruses dengue fever emerging infectious diseases hemorrhagic fever travel medicine vector-borne diseases |
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