oral poliovirus vaccine造句

• Oral poliovirus vaccine
  沙宾疫苗
• Instead of one dose of type 1 oral poliovirus vaccine and two doses of oral polio trivalent vaccine in the past , a child should have received three doses of inactivated trivalent polio vaccine by 6 months of age which should be safe and offers at least the same or better overall protection to all 3 types of polioviruses
  相比起过往接种一剂第一型口服小儿麻痹疫苗及两剂三型口服混合小儿麻痹疫苗，幼儿在更新后的儿童免疫接种计划下将接种三剂三型混合灭活小儿麻痹疫苗。此改变不但安全，且能提高儿童对三种小儿麻痹病毒的免疫力。