Appearance of persistently cytopathic Eastern and Western encephalitis viruses after "blind" passage in cultures of L mouse fibroblasts.
D001766:Blindness; D004660:Encephalitis / Q000821:virology*; D004668:Encephalitis Viruses; D005347:Fibroblasts; D046509:Tissue Culture Techniques; D014780:Viruses / Q000208:ethnology*
ENCEPHALITIS/virology; TISSUE CULTURE; VIRUSES/culture