Jia Youling, chief veterinary officer in China's Agriculture Ministry, said China is in the process of vaccinating all poultry in the country. He said the government will pay all fees involved, but he did not provide any details of how officials would carry out the vaccinations.
Vaccinate 的意思就是“（给…）接种疫苗”，也就是我们通常所说的“打预防针”，vaccinate 常和 against 连用，表示“接种疫苗以预防（疾病）”，如：When were people first vaccinated against measles?（人们首次接种麻疹疫苗是什么时候？）
此外，vaccine指的是“疫苗”，而“（接种）疫苗者”则称为vaccinee。