Abstract
Objective: To investigate the operation of children's vaccination clinics in Shandong Province, simulate the efficiency of vaccination capacity utilization, and explore the feasibility of carrying out adult vaccination in children's vaccination clinics. Methods: Using the extreme hypothesis method to determine the maximum vaccination capacity of children's vaccination clinics. Based on on-site surveys, population, and vaccination rate data, simulation parameters were determined, and the simulation method was used to simulate the utilization efficiency of vaccination capacity in different scenarios of children's vaccination clinics. Results: There were 2 654 children's vaccination clinics by the end of 2021 in Shandong province. There was (6.93±4.02) staff per vaccination clinic, with an average opening day of (4.16±2.19) days per week. In the scenario of only vaccinating children, the utilization efficiency of vaccination capacity during the non-influenza vaccination season was only 30.74% and 14.07% in urban and rural vaccination clinics, respectively. During the influenza vaccination season, the utilization efficiency of the vaccination capacity of urban vaccination clinics reached 49.26% when the child influenza vaccination rate reached 20%. In the scenario of simultaneous vaccination of children and adults, the utilization efficiency of vaccination capacity during the non-influenza vaccination season was 41.48% and 18.52% in urban and rural vaccination clinics, respectively. During the influenza vaccination season, the utilization efficiency of vaccination capacity in urban vaccination clinics reached 51.47% when the influenza vaccination rate of the entire population reached 3%. The utilization efficiency of vaccination capacity in rural vaccination clinics reached 52.44% when the influenza vaccination rate of the entire population reached 20%. Conclusion: The accessibility of children's vaccination is good in Shandong province, and the utilization efficiency of vaccination capacity can meet the current vaccination needs of children and adults. The vaccination capacity in urban areas needs to be strengthened to meet the growing vaccination needs of children and adults in the future.
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