Abstract
During the summer and fall of 1971, epizootic and epidemic Venezuelan equine encephalitis was detected in Texas. Isolates of epizootic (IB) and vaccine (TC-83) strains were distinguished by virulence of the former for guinea pigs. Vaccine virus was isolated from 1 to 14 days after vaccination and neutralization tests demonstrated the appearance of antibody about a week after vaccination. Viremia titers of subtype IB in horses ranged from 2.2 to 8.3 log10 suckling mouse intracranial 50% lethal doses per ml. Of 101 equines from which Venezuelan equine encephalitis virus (IB or TC-83) strains were isolated, 87 had no neutralizing antibody against Venezuelan, eastern or western equine encephalitis viruses.
Publisher
American Society for Microbiology
Reference17 articles.
1. Casey H. L. 1965. Standardized diagnostic complement fixation method and adaptation to micro test part II p. 31-34. Adaptation of LBCF method to micro technique. Pub. Health Monogr. no. 74. Public Health Service Publication no. 1228 U.S. Government Printing Office Washington D. C.
2. Virulence of Venezuelan equine encephalomyelitis virus subtypes for various laboratory hosts;Calisher C. H.;Appl. Microbiol.,1974
3. Morbid;Center for Disease Control.;Mortal. Week. Rep.,1971
4. Techniques for hemagglutination and hemagglutination-inhibition with arthropod-borne viruses;Clarke D. H.;Am. J. Trop. Med. Hyg.,1958
5. Epidemic strain of Venezuelan equine encephalomyelitis virus from a vampire bat captured in Oaxaca, Mexico, 1970;Correa-Giron P.;Science,1972
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献