An outbreak of dengue fever in St. Croix (US Virgin Islands), 2005.

Autor: Hamish Mohammed, Mary Ramos, Julie Armstrong, Jorge Muñoz-Jordán, Kathleen O Arnold-Lewis, Aurimar Ayala, Gary G Clark, Eugene S Tull, Mark E Beatty
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: PLoS ONE, Vol 5, Iss 10, p e13729 (2010)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0013729
Popis: BACKGROUND: Periodic outbreaks of dengue fever occur in the United States Virgin Islands. In June 2005, an outbreak of dengue virus (DENV) serotype-2 with cases of dengue hemorrhagic fever (DHF) was detected in St. Croix, US Virgin Islands. The objective of this report is to describe this outbreak of DENV-2 and the findings of a case-control study examining risk factors for DHF. METHODOLOGY/PRINCIPAL FINDINGS: This is the largest dengue outbreak ever recorded in St. Croix, with 331 suspected dengue cases reported island-wide during 2005 (62.2 cases/10,000 population); 54% were hospitalized, 21% had at least one hemorrhagic manifestation, 28% had thrombocytopenia, 5% had DHF and 1 patient died. Eighty-nine laboratory-positive hospitalized patients were identified. Of these, there were 15 (17%) who met the WHO criteria for DHF (cases) and 74 (83%) who did not (controls). The only variable significantly associated with DHF on bivariate or multivariable analysis was age, with an adjusted odds ratio (95% confidence interval) of 1.033 (1.003,1.064). CONCLUSIONS/SIGNIFICANCE: During this outbreak of DENV-2, a high proportion of cases developed DHF and increasing age was significantly associated with DHF.
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