two groups of tick-borne encephalitis ( tbe ) virus strains were studied : group 1 , 5 strains isolated from patients with chronic tbe with progressive course , group 2 , 13 strains isolated from residents of an endemic locality , with chronic diseases of the cns ( amiotrophic lateral sclerosis , epidemic encephalitis , polyoencephalomyelitis , syringomyelia , etc . ) .
C3714787
cns
C0014055
epidemic encephalitis