CYTOPATHIC VIRUSES ISOLATED FROM IXODES RICINUS TICKS IN CZECHOSLOVAKIA.
D000818:Animals; D003604:Czechoslovakia; D007304:Insect Viruses; D018884:Ixodes; D009500:Neutralization Tests; D012106:Research; D013987:Ticks; D014714:Vertebrates; D014776:Virus Cultivation; D014780:Viruses
CZECHOSLOVAKIA; EXPERIMENTAL LAB STUDY; INSECT VIRUSES; NEUTRALIZATION TESTS; TICKS; VERTEBRATE VIRUSES; VIRUS CULTIVATION