据美国Fitzsimmons部队医学中心的Wittler宣称,儿童接种第2剂麻疹疫苗的年龄应大于政府目前建议的接种年龄。据报道,尽管183名青少年和青年早期曾接种过麻疹疫苗,但是仍有10%的人对麻疹易感。Wittier说,在接种首剂麻疹疫苗10年以后,再接种第2剂麻疹、腮腺炎、风疹(MMR)疫苗对麻疹的低抵抗力加强最有 According to Wittler of the Fitzsimmons Force Medical Center in the United States, children should be given a second-dose measles vaccine that is older than the current age of vaccination recommended by the government. It is reported that while 183 adolescents and young people have been vaccinated against measles in the early stages, about 10% are still susceptible to measles. Wittier said that the second-dose measles, mumps and rubella (MMR) vaccines have the lowest resistance to measles more than 10 years after the first dose of measles vaccine