The artificial infection experiment showed that 80 percent of strains (8/10) were highly virulent and the disease was easily reproduced by subcutaneous, intramuscular or webfoot injection.
人工感染
明，80%（8/10）菌株毒力
，皮下、肌肉、足
3
径均易复制该病；
足；趾动物；脚趾间有薄膜的动物The artificial infection experiment showed that 80 percent of strains (8/10) were highly virulent and the disease was easily reproduced by subcutaneous, intramuscular or webfoot injection.
人工感染明，80%（8/10）菌株毒力，皮下、肌肉、足3径均易复制该病；
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