Results: 310

Tracing the origin of the NS1 A188V substitution responsible for recent enhancement of Zika virus Asian genotype infectivity

Mem. Inst. Oswaldo Cruz; 112 (11), 2017
A recent study showed that infectivity of Zika virus (ZIKV) Asian genotype was enhanced by an alanine-to-valine amino acid substitution at residue 188 of the NS1 protein, but the precise time and location of origin of this mutation were not formally estimated. Here, we applied a Bayesian coalescent-based...

Zika e Aedes aegypti: antigos e novos desafios

Resumo: A infecção por zika teve grande impacto não somente nas grávidas e nos recém-nascidos, mas também na saúde pública, nas ideias populares sobre o Aedes aegypti e no respeito dos direitos sociais das mulheres. O objetivo deste texto é identificar esse impacto e as mudanças históricas, so...

Epidemiologia de dengue e Zika Vírus na 13ª Regional de Saúde do Paraná-Brasil

Saude e pesqui. (Impr.); 10 (2), 2017
A dengue e o Zika vírus são doenças virais infecciosas de transmissão vetorial. O objetivo deste trabalho foi descrever as ocorrências da dengue e do Zika vírus na 13ª Regional de Saúde do Paraná, com sede no município de Cianorte, e em mais dez outros municípios. Os dados foram obtidos no Sis...

Low seroprevalence of Zika virus in Cameroonian blood donors

Braz. j. infect. dis; 21 (4), 2017
Abstract A Zika virus seroepidemiology study was performed in 1084 blood donors collected from August to October 2015 in six sites of Cameroon representing a large panel of eco-environments. Samples were tested using an anti-NS1 IgG ELISA detection kit and positives were further confirmed by seroneutrali...

Culex quinquefasciatus from areas with the highest incidence of microcephaly associated with Zika virus infections in the Northeast Region of Brazil are refractory to the virus

Mem. Inst. Oswaldo Cruz; 112 (8), 2017
Zika virus (ZIKV) is widely distributed in Brazil and the Northeast Region (NE) is the most affected zone, showing the highest incidence of microcephaly associated with ZIKV congenital infections worldwide. We report attempts to infect three populations of Culex quinquefasciatus from severely affected si...

Dengue, chikungunya, zika y mayaro, amenazas para la salud en Honduras
Dengue, chikungunya, zika and mayaro, threats for the health of Honduras

El dengue es una enfermedad prevalente con antigüedad en Honduras, la cual dejó de ser la arbovirosis exclusiva del país con la aparición del chikungunya y del zika, debido al limitado control logrado frente al vector. Se considera asimismo la posibilidad de la introducción de nuevas enfermedades co...

A propósito del artículo "Reducir las poblaciones del mosquito Aedes aegypti; estrategia para evitar tres enfermedades virales que incrementan su incidencia"
On the purpose of the article "To reduce the population of Aedes aegypti mosquitoes, strategy to prevent three viral diseases increasing their incidence"

Rev. medica electron; 39 (3), 2017