Figures & data
Table 1. Eligibility for free influenza vaccination in Ningbo, China by date of birth and immigration status.
Table 2. Characteristics of enrolled elderly in influenza seasons from 2017–18 to 2022–23, Ningbo City.(N, %).
Figure 1. Trends of influenza vaccination coverages in target birth cohorts from 2017–18 to 2022–23 season.
Table 3. Influenza vaccine uptake among the elderly by influenza season, demographic characteristics, free vaccination policy, medical and vaccination history during pre- and post-Covid-19 pandemic in Ningbo.
Table 4. Factors associated with influenza vaccination among the elderly in Ningbo.
Figure 2. Weekly influenza vaccine uptake among the elderly by influenza seasons.
Figure 3. Frequency of influenza vaccination among the elderly before and during the COVID-19 pandemic.
