prevalence status

基本解释

Objective To find out the prevalence status of human intestinal parasites infection in Henan Province and constitute the controlling parasites strategy.
目的了解河南省人群肠道寄生虫感染的流行态势，制定现阶段寄生虫病防治策略。
It has very important significance to understand the species and prevalence status of infection sources of schistosomiasis and to analyze their role in the transmission.
了解掌握血吸虫病流行区传染源的种类和感染状况，分析各宿主在传播中的作用具有重要的现实意义。
Objective To clarify the current prevalence status of overweight and obesity in elder populations in China and to explore the relationship between the obesity and age increment.
目的了解我国老年人群身体超重和肥胖的现状，并且探讨肥胖与增龄的关系。