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[Geneva, Switzerland], WHO, 2016 Jun 9.  p.As of 8 June 2016, 60 countries and territories report continuing mosquito-borne transmission of which: 46 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos. 14 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission. In addition, four countries or territories have reported evidence of Zika virus transmission between 2007 and 2014, without ongoing transmission: Cook Islands, French Polynesia, ISLA DE PASCUA -Chile and YAP (Federated States of Micronesia). Ten countries have reported evidence of person-to-person transmission of Zika virus, probably via a sexual route. In the week to 8 June 2016, no new country reported mosquito-borne or person-to-person Zika virus transmission. As of 8 June 2016, microcephaly and other central nervous system (CNS) malformations potentially associated with Zika virus infection or suggestive of congenital infection have been reported by eleven countries or territories. Three of those reported microcephaly borne from mothers with a recent travel history to Brazil (Slovenia, United States of America) and Colombia (Spain), for one additional case the precise country of travel in Latin America is not determined. In the context of Zika virus circulation, 13 countries and territories worldwide have reported an increased incidence of Guillain-Barré syndrome (GBS) and/or laboratory confirmation of a Zika virus infection among GBS cases. As of 8 June, Cabo Verde has reported a total of six cases of microcephaly and other neurological abnormalities with serological indication of previous Zika infection. Based on research to date, there is scientific consensus that Zika virus is a cause of microcephaly and GBS. The global Strategic Response Framework launched by the World Health Organization (WHO) in February 2016 encompasses surveillance, response activities and research. An interim report has been published on some of the key activities being undertaken jointly by WHO and international, regional and national partners in response to this public health emergency. A revised strategy for the period July 2016 to December 2017 is currently being developed with partners and will be published in mid-June. WHO has developed new advice and information on diverse topics in the context of Zika virus. WHO’s latest information materials, news and resources to support corporate and programmatic risk communication, and community engagement are available online. (Excerpt)
Geneva, Switzerland, WHO, 2016 May 13.  p. (WHO/ZIKV/MOC/16.2 Rev.1)The mosquito vector that carries the Zika virus thrives in warm climates and particularly in areas of poor living conditions. Pregnant women living in or travelling to such areas are at equal risk as the rest of the population of being infected by viruses borne by this vector. Maternal infection with Zika virus may go unnoticed as some people will not develop symptoms. Although Zika virus infection in pregnancy is typically a mild disease, an unusual increase in cases of congenital microcephaly, Guillain-Barré syndrome and other neurological complications in areas where outbreaks have occurred, has significantly raised concern for pregnant women and their families, as well as health providers and policy-makers. The aim of this document is to provide interim guidance for interventions to reduce the risk of maternal Zika virus infection and to manage potential complications during pregnancy. This guidance is based on the best available research evidence and covers areas prioritized by an international, multidisciplinary group of health care professionals and other stakeholders. Specifically, it presents guidance for preventing Zika virus infection; antenatal care and management of women with infection; and care during pregnancy for all pregnant women living in affected areas, with the aim of optimizing health outcomes for mothers and newborns. The guidance is intended to inform the development of national and local clinical protocols and health policies that relate to pregnancy care in the context of Zika virus transmission. It is not intended to provide a comprehensive practical guide for the prevention and management of Zika virus.
Geneva, Switzerland, WHO, 2016 May 30.  p. (WHO/ZIKV/MOC/16.1 Rev.1)This document is an update of guidance published on 18 February 2016 to provide advice on the prevention of sexual transmission of Zika virus.The primary transmission route of Zika virus is via the Aedes mosquito. However, mounting evidence has shown that sexual transmission of Zika virus is possible and more common than previously assumed. This is of concern due to an association between Zika virus infection and adverse pregnancy and fetal outcomes, including microcephaly, neurological complications and Guillain-Barre syndrome. The current evidence base on Zika virus remains limited. This guidance will be reviewed and the recommendations updated as new evidence emerges.