Abstract: Objective To understand the epidemic and dynamic status as well as prevalence trend of taeniasis in Dali City for evidence to plan scientific prevention and control strategies. Methods From 2016 to 2019, we carried out a history survey and stool examination of taeniasis in population in Dali area, and provided deworming medications for partial infected locals on their own free will and residents reporting of a history of excreted groglottid that, though, was negative for fecal examination. In the event that complete body or any segment of a tapeworm was detected in the latter following deworming medications, they were considered as positive infection and included in this study. Results The infection rate of taeniasis was 2. 94% ,2. 26% , 0. 93% and 0. 33% , respectively from 2016 to 2019, which tended to decrease year by year. Annual average infection rate was higher in males(2. 13% )than in females(1. 18% ), and higher in 14-year-old group (2. 44% ) than in 3-year-old group (0. 47% ) and 60-year-old group (1. 18% ). Farmers had higher infection (1. 99% ) than school students (0. 64% ). The annual average infection rate was also higher in population of illiteracy or semi-illiteracy than preschool children and primary school students(3. 56% vs. 1. 49% and 1. 25% ). All the infected subjects were Bai ethnic. Infection was free in teachers, village cadres and residents with college degree or above during the 4 years. Conclusion Although taeniasis remains in the lowest prevalence in Dali area, yet the locals still maintain habit of eating raw meat and raw pig liver. Therefore, there still exists many challenges in prevention and control of taeniasis, and following prevention and control measures should be implemented in comprehensive manner.

Key words: Taeniasis, Surveillance, Dali City