Monitoring and analysis of vaccine use in Liaoning Province's immunization program in 2021 - 2024
10.3969/j.issn.1006-2483.2026.02.005
- VernacularTitle:2021—2024年辽宁省免疫规划疫苗使用情况监测分析
- Author:
Yatong DUAN
1
;
Yingzhen LIU
2
;
Zenghui ZHANG
1
;
Xing FANG
1
Author Information
1. Liaoning Provincial Center for Disease Control and Prevention, Shenyang, Liaoning 110006, China
2. Institute of Preventive Medicine, China Medical University, Shenyang, Liaoning 110001, China
- Publication Type:Journal Article
- Keywords:
Immunization program (NIP)vaccine;
Utilization rate;
Monitoring;
Loss coefficient
- From:
Journal of Public Health and Preventive Medicine
2026;37(2):22-25
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the utilization of immunization program vaccines in Liaoning Province and evaluate the vaccine management mode, and to provide a scientific basis for optimizing immunization strategies. Methods The vaccine collection data and vaccine administration data of vaccination units (including obstetric clinics) in the province from 2021 to 2024 were collected, and the vaccine utilization rate of immunization program was calculated. SPSS 13.0 software was used for data analysis, and χ2 test was used for comparison. A two-sided P value of <0.05 was considered statistically significant. Results (1) From 2021 to 2024, vaccination units and obstetric clinics received a total of 15 993 884 doses of immunization program vaccines, with a total utilization rate of 79.34%. The highest utilization rate was the single-dose vaccine MPSV-AC (94.02%), followed by JE-L (91.92%). The lowest rate of use was the 5-dose strength vaccine MPSV-A (48.12%), followed by the 4-dose strength vaccine DT (63.13%). (2) Comparing MPSV-A and DT in different years, the utilization rate of MPSV-A and DT was the highest in 2021, 59.53% and 67.71%, respectively. From 2021 to 2024, the utilization rate of MPSV-A had a decreasing trend year by year, with the lowest being 38.65% (2024), and the loss coefficient of MPSV-A in each year was higher than that of DT. (3) Comparison of vaccine utilization rates in immunization programs around 2020, the utilization rate of single-dose vaccines increased significantly compared with before, while the utilization rate of multi-dose vaccines decreased compared with before 2020. Conclusion After 2020, the vaccine utilization rate of the immunization program in Liaoning Province has increased significantly, and the optimized vaccine management strategies has achieved remarkable results. Multi-dose vaccines remain highly susceptible to formulation-related factors and vaccination density. It is recommended to formulate precise vaccination strategies to reduce the loss of multi-dose vaccines.
