Clin Infect Dis:侵袭性肺炎球菌病死亡儿童不受疫苗保护!

2017-08-15 吴刚 环球医学

2017年6月,发表在《Clin Infect Dis》的一项由英国和澳大利亚科学家进行的分析,考察了英格兰和威尔士2006~2014年因侵袭性肺炎球菌病造成的儿童死亡病例。

2017年6月,发表在《Clin Infect Dis》的一项由英国和澳大利亚科学家进行的分析,考察了英格兰和威尔士2006~2014年因侵袭性肺炎球菌病造成的儿童死亡病例。

背景:肺炎球菌结合疫苗(PCV)在预防侵袭性肺炎球菌病(IPD)中高度有效,但是因IPD造成的死亡仍然发生。我们旨在分析,英格兰和威尔士引入PCV以来,死于IPD的儿童

方法:英国公共卫生部门(Public Health England)在英格兰和威尔士进行了加强IPD监测的计划。IPD病例为符合PCV接种标准的儿童,年龄<5岁(2004年9月4日出生,2006年9月4日~2014年9月3日确诊),主动通过邮政问卷调查进行随访,对于死亡病例,从多个方面前瞻性地搜集详细信息。

结果:8年期间,共有3146例IPD病例,150例IPD相关死亡病例(死亡率,4.8%)。总体来说,对死亡病例的132个分离株进行了血清分型(88%),鉴别出35个不同的血清型,无任何血清型占优势。多数死亡发生于<1岁(88/150[59%])和1岁的儿童(36/150[24%])。1/3(53/150[35%])的死亡病例具有已知的IPD风险因素。各年龄层的临床表现具有差异,而不同的结合疫苗中的各血清型没有差异。几乎一半的死亡病例(71/150[47%])确诊为脑膜炎。7价PCV引入后,IPD相关的死亡率从2006~2007年的1.25/100000降低到2009~2010年的0.60/100000,13价疫苗引入后,死亡率从2010年4月进一步降低到2013~2014年的0.39/100000(14例死亡;发病率比0.31[95% CI,0.16~0.61];P=0.0003),多数死亡因非疫苗血清型或新生儿。

结论:多数死亡IPD病例未受到疫苗保护。需要额外的策略来降低已经成立肺炎球菌疫苗接种计划的国家的儿童肺炎球菌死亡。

原始出处:

Godwin Oligbu, et al. Childhood Deaths Attributable to Invasive Pneumococcal Disease in England and Wales, 2006–2014. Clinical Infectious Diseases, Volume 65, Issue 2, 15 July 2017, Pages 308–314.

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    2017-08-17 sunyl07
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    2017-08-16 雅文博武

    学习了很多先进的医疗技术

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