Abstracto
- Arbovirus of the genus Alphavirus and Flavivirus can cause febrile illness and sometimes neurological disease in both humans and animals. West Nile Virus (WNV), Eastern Equine Encephalitis Virus (EEEV), Western Equine Encephalitis Virus (WEEV) and Venezuelan Equine Encephalitis Virus (VEEV) are endemic in the Mesoamerican region and the local appearance of these viruses is regulated by the amount of vectors and reservoirs. The objective of this research was to establish the etiologic agents associated with the presentation of arboviral neurological disease in Costa Rican horses from 2009-2016.