按二岁时,儿童应有四剂肺炎球菌偶联疫苗(PCV),四剂白喉,破伤风和细胞的疫苗(DTAP)疫苗,三剂灭活的poliovirus疫苗疫苗(IPV),一剂剂量,一剂的频率(Mumps,mumps,mumps,mump of shim of haim of of haim of of shim of of ha,mumps and immr smmr smmr smmr smmr smmr smmr of smmr smmr smmr smmr smmr smmr smmr smmr(mmmr)流感型B型(HIB)疫苗,一剂Vericella(VAR)疫苗和三剂乙型肝炎(HEPB)疫苗。