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Revision to CDC’s Zika travel notices : minimal likelihood for mosquito-borne Zika virus transmission at elevations above 2,000 meters
Filetype[PDF - 93.78 KB]


Details:
  • Personal Authors:
  • Pubmed ID:
    26985965
  • Series:
    MMWR. Morbidity and mortality weekly report ; v. 65, no. 10, p. 267-268
  • Document Type:
  • Description:
    On March 11, 2016, this report was posted as an MMWR Early Release on the MMWR website.

    Since May 2015, when Zika virus, a flavivirus transmitted primarily by Aedes aegypti mosquitoes, was reported in Brazil, the virus has rapidly spread across the Region of the Americas and the Caribbean. The association between maternal Zika virus infection and adverse fetal and reproductive outcomes, including microcephaly, prompted CDC to issue a Level 2 alert travel notice* for the 37 countries and U.S. territories (at the national and territorial level) that have reported recent Zika virus transmission as of March 11, 2016. In addition to mosquito bite precautions for all travelers, CDC advises that pregnant women postpone travel to affected countries and U.S. territories. Within a nation's borders, ecologic characteristics, which determine the distribution of mosquito vectors, can vary considerably. CDC conducted a spatial analysis, focusing on the probability of occurrence of Ae. aegypti, to support the demarcation for subnational travel alerts. Based on results of this analysis, travel that is limited to elevations higher than 2,000 m (6,562 ft) above sea level is considered to have minimal (approximately 1%) likelihood for mosquito-borne Zika virus transmission, even within countries reporting active transmission. Women who are pregnant should avoid travel to elevations <2,000 m in countries with active Zika virus.

    Suggested citation for this article: Cetron M. Revision to CDC’s Zika Travel Notices: Minimal Likelihood for Mosquito-Borne Zika Virus Transmission at Elevations Above 2,000 Meters. MMWR Morb Mortal Wkly Rep 2016;65:267–268. DOI: http://dx.doi.org/10.15585/mmwr.mm6510e1.

    PMID: 26985965

    mm6510e1.pdf

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