钩端螺旋体病患者与伯氏疏螺旋体偶尔可出现交叉反应，在动物试验亦得到证实，但出现频度和滴度均不高。
Leptospirosis sera and Borrelia burgdorferi could be cross-reacted occasionally, that was also confirmed by animal test, but the frequency and antibody dilution was low.
病毒连续传代至第7代或第8代以后，其感染率、病毒滴度及多角体产量均有显著下降。
Infection rates, titer, and OB yield declined with increasing serial passages of MsNPV in the cell line, they dropped off rapidly after the 7th or 8th passage.
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