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- Ssq株和Szg株在Vero細胞上的細胞病變(CPE)明顯，對細胞的感染毒力分別為T(mén)CID_(50)=10~(-3.925)/0.5ml和TCID_(50)=10~(-3.223)/0.5ml。The Szg and Ssq strains had clear cytopathic effect(CPE) on Vero cell, and the 50%25 tissue culture infective dose were TCID_(50)=10~(-3.925)/0.5ml, TCID_(50)=10~(-3.223)/0.5ml, respectively. Spherical and capsular virus particles were observed in electron microscope in Vero-cultured virus.
