检索是鼠疫监测中的重要环节。从我州所存资料来看，在疫源地检索中自毙旱獭平均检菌率为27．29％，而活体旱獭检菌率在0．047％。资料统计，人类鼠疫传染途径67．7％却为无防护情况下直接接触剥食染疫旱獭所致。为保护人群生产和生活安全，多年来，我们根据疫源地分布特点，共 Retrieval is an important part of plague surveillance. According to the data stored in our state, the average number of bacteria-seeding bacteria in the foci retrieved from foci was 27.29%, while the rate of viable bacteria was 0.047%. According to statistics, 67.7% of the human plague infections were caused by the direct contact with pest-eating plague in the absence of protection. In order to protect the production and livelihood of the population, over the years, according to the distribution characteristics of the foci,