Seroprevalence of St. Louis Encephalitis Virus and West Nile Virus (Flavivirus, Flaviviridae) in Horses, Uruguay
نویسندگان
چکیده
St. Louis encephalitis virus (SLEV) and West Nile virus (WNV) belong to the Japanese encephalitis antigenic complex (Flavivirus genus, Flaviviridae family). They show antigenic close relationships and share many similarities in their ecology. Both are responsible for serious human diseases. The aim of this study was to investigate the presence of neutralizing antibodies to these viruses in horses from Uruguay. To do this, 425 horse sera were collected in 2007 and analyzed by plaque reduction neutralization tests. As a result, 205 sera (48.2%) were found positive for SLEV, with titers ranging between 10 and 80. Two sera remained inconclusive, since they showed low titers to WNV and SLEV (10 and 20), not allowing us to demonstrate activity of WNV in our territory. This is the first report of circulation of SLEV in horses in Uruguay.
منابع مشابه
Review on Infections of the Central Nervous System by St. Louis Encephalitis, Rocio and West Nile Flaviviruses in Brazil, 2004-2014
Rocio (ROCV), Saint Louis encephalitis (SLEV) and West Nile (WNV) are Flavivirus (Flaviviridae) probably carried by birds and transmitted by Culex mosquitoes. We show here a review on infections of the central nervous system by St. Louis Encephalitis, Rocio and West Nile Flaviviruses in Brazil, 2004-2014. In the last 10 years, serologic surveys in horses showed high proportions of seropositive ...
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To the editor: West Nile virus (WNV) and Saint Louis encephalitis virus (SLEV) belong to the Japanese encephalitis an-tigenic complex (family Flaviviridae, ge-nus Flavivirus). 1-3 As with other members of this complex, WNV and SLEV are usually maintained in cycles between birds and Culex species mosquitoes. Humans, horses and other mammals are typically dead-end hosts. WNV and SLEV infections i...
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West Nile virus (WNV) is a flavivirus closely related to Japanese encephalitis and St. Louis encephalitis viruses that is primarily maintained in nature by transmission cycles between mosquitoes and birds. Occasionally, WNV infects and causes disease in other vertebrates, including humans and horses. West Nile virus has re-emerged as an important pathogen as several recent outbreaks of encephal...
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عنوان ژورنال:
دوره 2013 شماره
صفحات -
تاریخ انتشار 2013