在开展出血热监测和鼠疫疫源地调查中．发现家栖鼠类及其蚤类均有较大变迁。为进一步了解其生态，给防病灭病工作提供科学依据，我们查阅了历史有关资料并结合近年调查结果，进行统计对比分析，结果报告如下：一、材料与方法1．材料来源：收集本站历年调查结果和原周宁县鼠防站 Hemorrhagic fever monitoring and plague origin investigation. Found that domestic rats and their fleas have a greater change. In order to further understand its ecology, to provide a scientific basis for disease prevention and treatment work, we have reviewed the historical data and combined with the findings of recent years for statistical comparative analysis. The results are reported as follows: I. Materials and Methods 1. Source of material: Collecting the survey results of previous years and the original Zhouning County mouse-proof station