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Título: | Zika virus infection confers protection against West Nile virus challenge in mice |
Autor: | Escribano-Romero, Estela; Merino-Ramos, Teresa; Saiz Calahorra, Juan Carlos; Martín-Acebes, M. A.; Jiménez de Oya, Nereida; Blázquez, Ana B. | Palabras clave: | Antibodies Flavivirus Humoral immune responses Protection West Nile virus Zika virus |
Fecha de publicación: | 2017 | Editor: | Taylor & Francis | Citación: | Emerging Microbes and Infections 6(9): e81 (2017) | Resumen: | Flaviviruses are RNA viruses that constitute a worrisome threat to global human and animal health. Zika virus (ZIKV), which was initially reported to cause a mild disease, recently spread in the Americas, infecting millions of people. During this recent epidemic, ZIKV infection has been linked to serious neurological diseases and birth defects, specifically Guillain-Barrè syndrome (GBS) and microcephaly. Because information about ZIKV immunity remains scarce, we assessed the humoral response of immunocompetent mice to infection with three viral strains of diverse geographical origin (Africa, Asia and America). No infected animals showed any sign of disease or died after infection. However, specific neutralizing antibodies were elicited in all infected mice. Considering the rapid expansion of ZIKV throughout the American continent and its co-circulation with other medically relevant flaviviruses, such as West Nile virus (WNV), the induction of protective immunity between ZIKV and WNV was analyzed. Remarkably, protection after challenge with WNV was observed in mice previously infected with ZIKV, as survival rates were significantly higher than in control mice. Moreover, previous ZIKV infection enhanced the humoral immune response against WNV. These findings may be relevant in geographical areas where both ZIKV and WNV co-circulate, as well as for the future development of broad-spectrum flavivirus vaccines. | URI: | http://hdl.handle.net/10261/292195 | DOI: | 10.1038/emi.2017.68 | E-ISSN: | 2222-1751 |
Aparece en las colecciones: | (INIA) Artículos |
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