[dagger]) The following viruses were tested for herpes simplex virus (HSV) type 1, HSV-2, varicella-zoster virus (HSV-3), Epsetin-Barr virus (human herpesvirus [HHV] type 4), cytomegalovirus (HHV-5), (HHV-6), HHV-7, HHV-8, dengue virus, Japanese encephalitis virus, rubella virus, West Nile virus, yellow fever virus, tick-borne encephalitis virus, Nipah virus, measles virus, mumps virus, parainfluenza virus, respiratory syncytial virus, metapneumovirus, Chikungunya virus, Sindbis virus, Semliki Forest virus, eastern equine encephalitis virus, western equine encephalitis virus, poliovirus, Coxsackie virus, echovirus, enterovirus, lyssaviruses, and Chandipura virus.
Viral causes of encephalitis (1) Worldwide distribution Limited to a certain geographic area Herpes viruses Flavi viruses * Herpessimplexvirus(HSV) * West Nile virus * Varicella-zoster virus (VZV) * Japanese encephalitis virus * Epstein-Barr virus (EBV) * St Louis encephalitis * Cytomegalovirus (CMV) * Tick-borne encephalitis virus * Human herpesvirus 6 Non-polio enteroviruses Alpha viruses * Western equine encephalitis virus * Eastern equine encephalitis virus Rabies virus Mumps virus
Despite these uncertainties, investigations showed that mosquitoes transmitted virus when their body titers exceeded 4-5 logs of virus for EEEV (23-25) and western equine encephalitis virus (38,39).
During acclimation, feral rats were determined to be seronegative for EEEV, VEEV, and western equine encephalitis virus by 80% plaque-reduction neutralization tests ([PRNT.
Birds infected with western equine encephalitis virus or Saint Louis encephalitis virus by mosquito bite or needle exhibit no difference in viremia responses (24), and mosquito saliva inhibits in vitro infection of dendritic cells by dengue virus (25).