immunizing

Children have been routinely immunized against polio since 1958.

自从1958 年以来，儿童都按照常规接种防治小儿麻痹苗。

Parents are advised to have their children immunized against diphtheria.

建议家长让孩子接种抗白喉苗。

Its safety and efficacy were tested and used to immunize the lactational and gestational bovines.

分别免乳期和妊娠乳牛，收集免乳。

Vaccination immunizes people against smallpox.

种牛痘能使人免。