RESUMEN
Objective To understand the use of the annual immunization program vaccine in Liaoning Province, and to objectively grasp the consumption coefficient of multi-dose immunization program vaccine, to provide the basis for the annual immunization program vaccine demand. Methods The amount of vaccine used in theimmunization plan of Liaoning Province in 2019 and the actual number of vaccine inoculations were summarized, and the utilization rate of vaccine and the consumption coefficient of vaccine in multiple doses were calculated. Results In 2019, the utilization rate of different varieties of immunization program vaccine was more than 65%, and there was significant difference in the utilization rate among cities (P<0.01). The consumption coefficients of multi-dose vaccination vaccine were 2.33 for DT, 2.26 for BOPV and 2.20 for MPSV-A, respectively. Compared with DT, BOPV and MPSV-A, MPSV-A had the highest scrap rate of 2.87%, followed by BOPV and DT with 1.82% and 0.32%, respectively. Conclusion Vaccine consumption in the multi-dose immunization program is the main factor affecting the accuracy of the annual requirement budget, and vaccine management should be strengthened to achieve reasonable allocation, reduce consumption and avoid waste.