Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia
We prospectively sampled flavivirus-naïve horses in northern Colombia to detect West Nile virus (WNV) and St. Louis encephalitis virus (SLEV) seroconversion events, which would indicate the current circulation of these viruses. Overall, 331 (34.1%) of the 971 horses screened were positive for past i...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2011-12-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762011000800012&lng=en&tlng=en |
| _version_ | 1797721246548361216 |
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| author | Salim Mattar Nicholas Komar Ginger Young Jaime Alvarez Marco Gonzalez |
| author_facet | Salim Mattar Nicholas Komar Ginger Young Jaime Alvarez Marco Gonzalez |
| author_sort | Salim Mattar |
| collection | DOAJ |
| description | We prospectively sampled flavivirus-naïve horses in northern Colombia to detect West Nile virus (WNV) and St. Louis encephalitis virus (SLEV) seroconversion events, which would indicate the current circulation of these viruses. Overall, 331 (34.1%) of the 971 horses screened were positive for past infection with flaviviruses upon initial sampling in July 2006. During the 12-month study from July 2006-June 2007, 33 WNV seroconversions and 14 SLEV seroconversions were detected, most of which occurred in the department of Bolivar. The seroconversion rates of horses in Bolivar for the period of March-June 2007 reached 12.4% for WNV and 6.7% for SLEV. These results comprise the first serologic evidence of SLEV circulation in Colombia. None of the horses sampled developed symptoms of encephalitis within three years of initial sampling. Using seroconversions in sentinel horses, we demonstrated an active circulation of WNV and SLEV in northern Colombia, particularly in the department of Bolivar. The absence of WNV-attributed equine or human disease in Colombia and elsewhere in the Caribbean Basin remains a topic of debate and speculation. |
| first_indexed | 2024-03-12T09:30:49Z |
| format | Article |
| id | doaj.art-07a4265b69204a888f72a286b1e6cd0f |
| institution | Directory Open Access Journal |
| issn | 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T09:30:49Z |
| publishDate | 2011-12-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-07a4265b69204a888f72a286b1e6cd0f2023-09-02T13:54:11ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz1678-80602011-12-01106897697910.1590/S0074-02762011000800012S0074-02762011000800012Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in ColombiaSalim Mattar0Nicholas Komar1Ginger Young2Jaime Alvarez3Marco Gonzalez4Universidad de CórdobaCenters for Disease Control and PreventionCenters for Disease Control and PreventionUniversidad de CórdobaUniversidad de CórdobaWe prospectively sampled flavivirus-naïve horses in northern Colombia to detect West Nile virus (WNV) and St. Louis encephalitis virus (SLEV) seroconversion events, which would indicate the current circulation of these viruses. Overall, 331 (34.1%) of the 971 horses screened were positive for past infection with flaviviruses upon initial sampling in July 2006. During the 12-month study from July 2006-June 2007, 33 WNV seroconversions and 14 SLEV seroconversions were detected, most of which occurred in the department of Bolivar. The seroconversion rates of horses in Bolivar for the period of March-June 2007 reached 12.4% for WNV and 6.7% for SLEV. These results comprise the first serologic evidence of SLEV circulation in Colombia. None of the horses sampled developed symptoms of encephalitis within three years of initial sampling. Using seroconversions in sentinel horses, we demonstrated an active circulation of WNV and SLEV in northern Colombia, particularly in the department of Bolivar. The absence of WNV-attributed equine or human disease in Colombia and elsewhere in the Caribbean Basin remains a topic of debate and speculation.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762011000800012&lng=en&tlng=enflavivirusWest Nile virusSt. Louis encephalitis virusColombiaequine |
| spellingShingle | Salim Mattar Nicholas Komar Ginger Young Jaime Alvarez Marco Gonzalez Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia Memorias do Instituto Oswaldo Cruz flavivirus West Nile virus St. Louis encephalitis virus Colombia equine |
| title | Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia |
| title_full | Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia |
| title_fullStr | Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia |
| title_full_unstemmed | Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia |
| title_short | Seroconversion for west Nile and St. Louis encephalitis viruses among sentinel horses in Colombia |
| title_sort | seroconversion for west nile and st louis encephalitis viruses among sentinel horses in colombia |
| topic | flavivirus West Nile virus St. Louis encephalitis virus Colombia equine |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762011000800012&lng=en&tlng=en |
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