pathogenn.病原体
Pathogentic mechanism发病机制
pathogen transmission病菌传播
Pathogen distribution病原菌
pathogenetic bacteria病原细菌
pathogeny and symptom病原和病症
pathogen surveillance病原监测
pathogenetic organism病原有机体
Pathogen inactivation病原体灭活
Pathogeny Observation病原学观察
Pathogenetic mechanism马铃薯瓢虫