Objective: To investigate the screening status of latent tuberculosis infection (LTBI) among primary and middle school students in Taizhou City, Zhejiang Province, so as to provide the evidence for optimizing campus tuberculosis prevention and control strategies. Methods: Data including affiliated administrative regions, school types, and student numbers from 2023 to 2025 were collected through schools. Relevant data on LTBI screening results among fourth- and fifth-grade primary school students, along with newly enrolled students in junior high schools, senior high schools, and secondary vocational schools in Taizhou City during the same period were collected through Centers for Disease Control and Prevention at county (city, district) level. The LTBI screening rate and detection rate were calculated, and descriptive analysis was conducted to compare screening and examination rates across different school types and regions. Results: A total of 601 537 primary and secondary school students were enrolled from 2023 to 2025, among whom 547 074 received LTBI screening, with an overall screening rate of 90.95%. The screening rate increased from 82.51% in 2023 to 95.73% in 2025, showing an upward trend (P<0.05). A total of 17 219 LTBI cases were identified, with an overall detection rate of 3.15%. The detection rate rose from 2.26% in 2023 to 4.40% in 2025, also with an increasing trend (P<0.05). Statistically significant differences in LTBI screening rate and detection rate were observed among students from different school types (both P<0.05). Primary schools had a relatively low screening rate of 86.48%, while secondary vocational schools had a higher LTBI detection rate of 4.47%. There were also significant differences in the two rates across different counties (cities, districts) (both P<0.05). Xianju County and Wenling City presented lower screening rates at 80.89% and 78.48% respectively. Sanmen County and Tiantai County had higher detection rates of 5.35% and 6.11% respectively. Conclusions Both LTBI screening rate and detection rate among primary and secondary school students in Taizhou City increased from 2023 to 2025. The screening work needs to be further strengthened among primary school students, as well as in Xianju County and Wenling City. Students in secondary vocational schools are key populations for prevention and control, and Sanmen County and Tiantai County are key areas.

Diabetic lower extremity vascular disease is one of the common chronic complications of diabetes,which has a strong disabling effect,clinically,it is of great significance to actively and effectively control the progression of the disease and improve the quality of life of patients.In Sanxiao Lun,LIU Wansu put forward the theory of"dryness-heat and stagnation"according to the pathogenesis of consumptive thirst,and thought that the dryness-heat and stagnation in the stomach and intestines of sanjiao were too severe,the xuanfu was blocked,and the qi and liquid failed to diffuse,which caused diabetes.Vascular endothelial injury and inflammatory reaction are important factors in the development of vascular disease,the pathogenesis evolution of"dryness-heat and stagnation"conforms to the pathological characteristics of inflammatory reaction in western medicine,and the dryness-heat runs through the diabetic lower extremity vascular disease throughout.In this paper,it is believed that diabetic lower extremity vascular disease belongs to the category of"flaccidity and paralysis"in traditional Chinese medicine,and lung scorched by heat is the cause of flaccidity."Dryness-heat and stagnation"is the source of invading heat(dryness-heat),lung scorched by heat,pulse failure and vein stasis occurred,which causes diabetic lower extremity vascular disease.Treatment should be based on flaccidity,combined with the viewpoint of LIU Wansu's Sanxiao Lun,taking yangming as the top priority,regulating the triple diabetes,solving the problem of dryness-heat and stagnation,combined with the method of purging the south and supplementing the north,so that the invading heat is cleared,lung heat is diminished,and flaccidity disease cannot occur,in order to provide new ideas for the clinical prevention and treatment of diabetic lower extremity vascular disease.