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去年末,美国儿科感染疾病委员会提出,把生后15个月1次接种麻疹疫苗法改为1岁以后实行2次接种法。第1次在生后15个月接种MMR(麻疹、流行性腮腺炎、风疹)三种混合疫苗,第2次在11～12岁接种MMR。美国麻疹发生情况分4期①疫苗未应用前,3～5岁的发病数是500～800/10万人口;②70年代疫苗接种率70～80%,流行患病者1～2岁和6岁左右发病数是10～30/10万,现日本正是这种情况;③80年代入幼儿园和入小学时接种终了,因实行义务接种,接种率明显增加,发病数仅1/10万左右,几乎达到根绝程度;④1986年全国有流行,发病数骤增到6,282例(2.7/10万)。说明麻疹没有根绝。86年以后的特征是,10岁以后发病者占半数以上
Late last year, the United States pediatric infection disease committee proposed to vaccinate the measles vaccine law after the first 15 months of life to 1 year old twice vaccination. The first three doses of MMR (measles, mumps and rubella) were administered 15 months after birth and the second was MMR at 11 to 12 years of age. The incidence of measles in the United States is divided into four phases. ① Before the vaccine was applied, the number of infants aged 3 to 5 years was 500 to 800 / 100,000 population. ② The vaccination rate was 70-80% in the 1970s, the prevalence was 1-2 and 6 years The incidence is about 10 to 30/100 000, now Japan is the case; ③ 80 years into kindergarten and primary school at the end of vaccination, due to the implementation of voluntary vaccination, vaccination rate increased significantly, the incidence of only 1/10 million or so, almost Reached the level of eradication. ④ In 1986, the epidemic was widespread in the country, with the number of sudden increase to 6,282 cases (2.7 / 100,000). That measles did not eradicate. After 86 years the characteristic is that after the age of 10, the incidence of more than half