Publicações relacionadas à zika
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In:
Médecine et maladies infectieuses
Authors:
S. Ioosa, H.-P. Mallet, I. Leparc Goffart, V. Gauthier, T. Cardoso, M. Herida
Abstract
The Zika virus (ZIKV) is a mosquito-borne flavivirus (Aedes), similar to other arboviruses, first identified in Uganda in 1947. Few human caseswere reported until 2007, when a Zika outbreak occurred in Yap, Micronesia, even though ZIKV activity had been reported in Africa and in Asiathrough virological surveillance and entomological studies. French Polynesia has recorded a large outbreak since October 2013. A great number ofcases and some with neurological and autoimmune complications have been reported in a context of concurrent circulation of dengue viruses. Theclinical presentation is a “dengue-like syndrome”. Until the epidemic in French Polynesia, no severe ZIKV disease had been described so far. Thediagnosis is confirmed by viral genome detection by genomic amplification (RT- PCR) and viral isolation. These two large outbreaks occurred in apreviously unaffected area in less than a decade. They should raise awareness as to the potential for ZIKV to spread especially since this emergentdisease is not well known and that some questions remain on potential reservoirs and transmission modes as well as on clinical presentations andcomplications. ZIKV has the potential to spread to new areas where the Aedes mosquito vector is present and could be a risk for Southern Europe.Strategies for the prevention and control of ZIKV disease should include the use of insect repellent and mosquito vector eradication.
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In:
The Lancet
Authors:
Myrielle Dupont-Rouzeyrol, Antoine Biron, Olivia O’Connor, Emilie Huguon, Elodie Descloux
Before 2007, no Zika virus outbreak had been recorded, and Zika virus was deemed to cause mild infections.1 In 2013–14, an outbreak occurred in French Polynesia associated with an increased rate of Guillain-Barré syndrome following Zika infections.2 Zika virus spread in the Pacifi c region in 2014 and then, in 2015, to Brazil where an association between Zika infection and microcephaly is under investigation.2 There is a need for better comprehension of this disease.
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In:
The Lancet
Author:
Constância F J Ayres
Zika virus is an emerging pathogen that has recently been causing serious epidemics around the world. Cases of Zika virus disease were reported in Micronesia in 20071 and then in French Polynesia in 2013.2 In French Polynesia, Guillain-Barré syndrome was reported for the first time in a few patients following Zika virus infection. In Brazil, Zika virus was introduced in 2014,3 and was subsequently associated with cases of microcephaly. So far, an estimated minimum of 400 000 cases of Zika virus disease have been reported in 24 states in Brazil, although the number of cases could be far higher. Most cases are concentrated in the Pernambuco state, in the northeast region. Currently, many countries in South and Central America, besides Brazil, are reporting a high number of Zika virus disease cases. Before 2007, very few human cases had been reported, and as a result, this virus has been poorly studied. It is important to highlight that other diseases caused by Zika virus infection might be identifi ed in the future. This arbovirus has only just
begun to spread and could become endemic in some areas in a very rapid manner.
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In:
The Lancet
Author:
Ruth Zwizwai
Zika virus—global update Between January, 2014, and Feb 5, 2016, 33 counties have reported autochthonous transmission of Zika virus. Brazil has reported the most number of cases, with the Brazilian national authorities estimating between 497 593 and 1 482 701 cases since the outbreak
began in late 2014. Colombia has reported the second highest number of Zika virus cases; as of Jan 23, 2016, 20 297 cases had been reported since October, 2015.
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In:
The Lancet
Author:
Richard Horton
Brazil is (understandably) upset. At WHO’s Executive Board meeting last month, one Geneva official told me that the country’s delegation was refusing to back resolutions it might otherwise have supported because the Brazilian Ministry of Foreign Aff airs opposed the World Bank’s country rankings. Brazil is classifi ed by the Bank as an upper-middle-income country, along with its near neighbours Colombia, Ecuador, Paraguay, and Peru. Unfortunately for the Bank (and WHO), Brazil doesn’t see itself as a middle-income nation. It has higher aspirations. Adding further insult, in 2015 the Bank promoted Brazil’s rivals, Argentina and Venezuela, to high-income status. A high-income country is defined by a gross national income per person equal to or above US$12 736. Brazil falls just short at $11 530 (2014). Brazil has long been sensitive to the judgment of others. When WHO published its World Health Report in 2000, the government and country’s health leadership were hurt and outraged. WHO ranked Brazil 125th out of 191 nations (Venezuela was placed 54th and Argentina 75th).
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