齐齐哈尔市梅里斯达斡尔族区地处黑龙江省西部，是达斡尔族聚集较多的少数民族区，在改革开放的浪潮中，人们的生活水平在日益提高，生活习惯也在不断地改善。该区属农业小区，共有16万人口，疫情统计发现，在甲乙类传染病中，以乙型病毒性肝炎发病率最高，且呈逐年上升的趋势 Qiqihar City, Merisida Daur region is located in the western Heilongjiang Province, Daghur is more gathered in the minority areas in the wave of reform and opening up, people’s living standards are increasing, living habits are also constantly improving. The area is an agricultural district with a total population of 160,000. Statistics of the epidemic found that among the Class A and B infectious diseases, the incidence of hepatitis B virus was the highest and showed an upward trend year by year