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目的 了解西藏麻疹流行病学特征,探讨麻疹防控措施.方法 收集通过法定传染病报告系统和麻疹监测系统上报的2011-2016年麻疹监测数据,进行描述性流行病学分析.结果 2011-2016年西藏共报告麻疹2 074例,年平均发病率为11.11/10万,各年发病率为0.7/10万(2012年)-32.0/10万(2015年);发病高峰期为4-5月;那曲地区病例数占总病例数的64.2％(1 332/2 074);年龄别年均发病率为1.3/10万(45-49岁)-100.6/10万(0-4岁),0岁儿童年均发病率为116.8/10万.在2016年8月龄-4岁病例中,无含麻疹成分疫苗(MCV)免疫史占67.4％(62/92).结论 2011-2016年西藏麻疹发病有回升趋势,呈现季节性、地区聚集性和小年龄儿童高发等特征.应加强适龄儿童MCV常规免疫工作,并适时开展强化免疫.“,”Objective To determine the epidemiological characteristics of measles in Tibet,and to explore measles prevention and control measures.Methods We obtained measles case reports through the Notifiable Infectious Disease Reporting System in Tibet during 2011-2016 for descriptive epidemiological analysis.Results During 2011-2016,2 074 measles cases were reported,for an annual average incidence of 11.11 per 100 000 population that ranged from 0.7 per 100 000 in 2012 to 32.0 per 100 000 in 2015.The inci denc peaked from April to May.Naqu prefecture reported 64.2％ (1 332/2 074) of all cases.The agespecific annual average incidence ranged from 1.3 per 100 000 among 4549 year olds to 100.6 per 100 000 among 04 year olds,with the highest incidence of 116.8 per 100 000 among infants.Among cases aged 8 months to 4 years in 2016,67.4％ (62/92) had not received measles containing vaccine(MCV).Conclusions The measles incidence showed an increasing trend in Tibet during 2011-2016 and varied by season and region.Measles occurred primarily among young children.We should enhance routine immunization of MCV for age-eligible children,and conduct supplemental immunization activities.