【摘要】 张家口坝上沽源、康保、尚义、张北眦邻内蒙。康保县系历史疫区,曾由内蒙传入鼠疫。根据四县鼠蚤分布对制定防制鼠疫对策具有重要意义。更多还原

【Abstract】 Guyuan Kangbao Shangyi Zhangbei four counties of Zhang Jiakon are a highland,where is contiguous to Neimenggu autonomous region. Kaugbao county was plague epidemic area in the history, when the plague had been spread from Neimonggu region.It is important that the rats and the fleas in the four counties are controled with efficient prevented plague methods.更多还原