Information access about influenza vaccination
INFLUENZA
Television was the most frequently used access for older participants to obtain knowledge about influenza vaccination. Meanwhile, older participants were more likely to obtain knowledge from PCPs and the internet with improvements of 25.2% and 13.3% respectively, after the free vaccination program was implemented (Fig. Information access about influenza vaccination among older participants. Note: Pre-implementation means prior the city-wide free influenza vaccination for older adults program was implemented. Post-implementation means after the city-wide free influenza vaccination for older adults program was implemented. Shenzhen implemented a city-wide free influenza vaccination for older adults program since October 2016