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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
  • Published Date:
    March 11, 2016
Filetype[PDF - 270.29 KB]


Details:
  • Personal Authors:
  • Series:
    MMWR. Morbidity and mortality weekly report ; v. 62, no. 10, early release, March 11, 2016
  • Document Type:
  • Description:
    Recommendations for pregnant women considering travel to an area of Zika virus transmission -- Recommendations for pregnant women with history of travel to an area of Zika virus transmission -- How to treat pregnant women with diagnoses of Zika virus disease.

    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 transmission.

    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. ePub: 11 March 2016. DOI: http://dx.doi.org/10.15585/mmwr.mm6510e1er.

    mm6510e1er.pdf

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