The forecasted BCG immunization coverage in China for children aged 1-year-old remains consistent at 99% from 2024 to 2028. This stable figure mirrors the actual coverage documented in 2023, indicating no significant year-on-year variation or growth. Therefore, the year-on-year variation percentage stands at 0%, and the 5-year CAGR remains equally flat.

Future trends to watch for include:

Potential policy changes affecting vaccination strategies and government healthcare funding.
Advancements in healthcare infrastructure that may influence vaccine delivery methods and reach.
Public health campaigns and educational efforts that could impact public perception and vaccine acceptance.