既然已经普及的两次接种有效率可达99%，这次简单粗暴的普遍强化总是让人不那么放心。相信WHO西太平洋区的压力很大吧

http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(09)60608-5/fulltext

卫生部提到日本做法，之前日本在本区的控制水平跟中国相当，均为黄色，也就比几个更差的小国强点(红色)，那边的做法这里有一些资料
http://www.cdc.gov/mmwr/preview/mmwrhtml/mm5738a5.htm
要点是：
. In Japan, measles control strategies have included 1) a nationwide public awareness campaign implemented in 2001 to promote timely vaccination with the first dose of measles-containing vaccine (MCV1) administered on or after age 12 months, and 2) a 2-dose MCV schedule with the second dose (MCV2) administered at age 5--6 years, adopted in 2006 in accordance with the recommended WPR measles elimination strategy. However, during 2007--2008, Japan experienced a large measles outbreak, which resulted in exportation of measles cases from Japan into countries where measles elimination had been achieved. This report describes the epidemiology of measles in Japan during 1999--2008 and approval of a National Measles Elimination Plan in December 2007 that includes recommendations for immunization strategies, case-based measles surveillance, and monitoring to ensure elimination of measles by 2012.

这事得再仔细了解一下，卫生部那个公告文实在写得太不专业了，比如我最关心的http://www.moh.gov.cn/publicfiles/business/htmlfiles/mohjbyfkzj/s3582/201008/48711.htm
“国内外的研究均表明，多次接种麻疹疫苗不会增大不良反应发生的概率”

首先，都国内外TMD谁的研究呀，给个关键字让我查也成呀。其次除了免疫反应，会不会增加身体负担、影响身体成长？有没有方法检测倒底之前的接种成功与否？成功了不打这一针是不是也没问题？