Objective:To construct the scheme of palliative care for nursing undergraduates based on competency outcomes and performance assessment (COPA) model, and to provide reference for palliative care course.Methods:The research period is from March to December in 2020. Based on Lenburg's COPA model, the first draft of the curriculum scheme was constructed through literature research and focus group interview, and 23 experts were invited to modify the content to determine the final versions of curriculum scheme.Results:The response rate of the two rounds of questionnaires were 100.0% and 91.3% respectively, and the expert authority coefficient were 0.80 and 0.82 respectively. After two rounds of Delphi procedure, the opinion of the experts was nearly consistent. The curriculum scheme contains 49 curriculum objectives, 70 theoretical contents, 5 practical contents and 9 teaching methods.Conclusions:The curriculum scheme of palliative care for nursing undergraduates based on COPA model is scientific and practical, which can provide guidance for undergraduate nursing.

【Objective】 To analyze the epidemic of hepatitis C virus (HCV) in voluntary blood donors , and to assess the residual risk of HCV transmission by blood transfusion in Taiyuan. 【Methods】 The HCV screening results of voluntary blood donors in Taiyuan from 2016 to 2021 were collected by blood center information system, and the epidemiologic feature of first-time and repeated donors were analyzed. The incidence-window period model was used to assess the residual risk of HCV transmission by transfusion in first-time/repeated donors as well as that in repeated donors under different blood screening modes. 【Results】 Of the 662 705 samples in Taiyuan from 2016 to 2021, the HCV positive rate of the first-time donors was 1.83‰(595/325 009) and the residual risk of HCV transmission was 14.91/100 000. The HCV positive rate of the repeated donors was 0.04‰ (13/337 696) and the residual risk was 0.31/1 000 000. The total residual risk of HCV transmission was 7.47/1 000 000. A total of 337 696 blood samples of repeated blood donors were tested, the repeated blood donors’ residual risk of transfusion-transmitted HCV was 0.31/100 000 after dual ELISA tests , and 0.06/100 000 after dual ELISA and once NAT, which reduce by 80.65% since NAT were adopted. 【Conclusion】 The residual risk of HCV transmission from repeated donors was less than that from first-time donors. The blood screening mode of HCV by dual ELISA and once NAT can effectively reduce the residual risk of transfusion-transmitted HCV and improve blood safety. The rate of repeat blood donation needs to be increased by continuously optimizing the recruitment strategy of blood donors.