vaccination rate造句怎么写

The study also found that Bolsa has improved child weight, vaccination rates and use of pre-natal care.

Objetive In order to search effective intervene strategy of improving vaccination rate of rural population, influence factors of hepatitis B vaccination to rural population were investigated.

This is partly because campaigners such as Ciro DE Quadros, the legendary former director of the Pan American Health Organisation, have made vaccination rates a matter of local pride.