Studies on Eastern Equine Encephalomyelitis Iv. Infection in the Mouse with Fresh A~d Fixed Virus
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Eastern Equine Encephalomyelitis Virus Infection in a Horse from California
A yearling quarter horse, which was raised in southern California, received routine vaccinations for prevention of infection by Eastern equine encephalomyelitis virus (EEEV). One week later, severe neurologic signs developed, and the horse was humanely destroyed. A vaccine-related encephalomyelitis was later suspected. A final diagnosis of EEEV infection was established on the basis of acute on...
متن کاملAlphaviral equine encephalomyelitis (Eastern, Western and Venezuelan).
Summary Alphaviral equine encephalomyelitis is a mosquito-borne infection that causes severe neurological disease and fatalities in horses and humans in the Americas. Consequently, the equine alphaviruses (Eastern, Western and Venezuelan) are of considerable concern worldwide and are notifiable to the World Organisation for Animal Health. In addition, these diseases are considered a potent pote...
متن کاملSusceptibility parameters of Aedes albopictus to per oral infection with eastern equine encephalitis virus.
Aedes albopictus (Skuse) mosquitoes were fed on snowy egrets, Egretta thula (Thayer and Bangs), that had been infected by subcutaneous inoculation of eastern equine encephalitis (EEE) virus. Freshly fed mosquitoes were frozen and tested to determine how much virus they had ingested. Other fed mosquitoes from the same lots were incubated for 7 d at 27 degrees C before testing. Seven lots of Ae. ...
متن کاملMolecular Determinants of Mouse Neurovirulence and Mosquito Infection for Western Equine Encephalitis Virus
Western equine encephalitis virus (WEEV) is a naturally occurring recombinant virus derived from ancestral Sindbis and Eastern equine encephalitis viruses. We previously showed that infection by WEEV isolates McMillan (McM) and IMP-181 (IMP) results in high (∼90-100%) and low (0%) mortality, respectively, in outbred CD-1 mice when virus is delivered by either subcutaneous or aerosol routes. How...
متن کاملEQUINE ENCEPHALOMYELITIS (Eastern and Western) SUMMARY Eastern and Western equine encephalomyelitis viruses belong to the genus Alphavirus of the family
Eastern and Western equine encephalomyelitis viruses belong to the genus Alphavirus of the family Togaviridae. Alternate infection of birds and mosquitoes maintain these viruses in nature. The disease occurs sporadically in horses and humans from mid-summer to late autumn. Horses and humans are tangential dead-end hosts. The disease in horses is characterised by fever, anorexia, and severe depr...
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