柳叶刀:新冠疫情影响了全球儿童常规免疫接种

2021-07-19 MedSci原创 MedSci原创

加强常规免疫接种数据系统和针对资源和外联的努力将至关重要,以最大限度地降低可用疫苗预防的疾病爆发的风险,帮助在大流行期间错过常规疫苗接种的儿童

COVID-19大流行和减少SARS-CoV-2传播的努力严重影响了全世界的卫生服务。为了更好地了解大流行对儿童常规免疫接种的影响,Jonathan F Mosser等估计了2020年全球和全球疾病负担(GBD)超级地区与大流行相关的疫苗覆盖中断情况。

该研究采用两步递阶随机样条建模方法,利用电子免疫系统的管理数据和报告,以流动性数据作为模型输入,估计全球和地区对常规免疫的干扰。结合在没有COVID-19的情况下预期的疫苗覆盖率估计值,这些估计值来自GBD 2020第1版(GBD 2020 R1)的疫苗覆盖率模型,估计了2020年第三剂白喉-破伤风-百日咳(DTP3)疫苗和第一剂麻疹疫苗(MCV1)常规接种失败的儿童人数。

2020年可获得的疫苗数据

2020年1月至12月,全球和按GBD超级区域的白喉三联疫苗和MCV1疫苗每月覆盖率

2020年,DTP3和MCV1的估计疫苗覆盖率分别为76.7%(95%不确定区间74.3-78.6)和78.9%(74.8-81.9),与未出现COVID-19大流行时的预期剂量相比,DTP3和MCV1的相对剂量分别降低了7.7%(6.0–10.1)和7.9%(5.2–11.7)。从2020年1月到12月,估计有3000万(27.6-33.1)儿童漏服DTP3,2720万(23.4-32.5)儿童漏服MCV1。与2020年合格儿童覆盖率的预期差距相比,这些估计数表明,由于COVID-19大流行,未常规接种DTP3的儿童增加了850万(6.5–11.6),未常规接种MCV1的儿童增加了890万(5.7–13.7)。在全球范围内,2020年4月,所有GBD超级地区的月中断量最高,有460万(4.0–5.4)名儿童缺少DTP3剂量,440万(3.7–5.2)名儿童缺少MCV1剂量。每个GBD超级地区的疫苗接种率在3月和4月都有所下降,其中北非和中东、南亚以及拉丁美洲和加勒比地区的年度影响最为严重。我们估计,撒哈拉以南非洲地区疫苗接种量的年度减少率最低,该地区全年中断的情况仍然很少。对于一些超级地区,包括东南亚、东亚和大洋洲的DTP3和MCV1,高收入的DTP3超级地区和南亚的MCV1,估计表明,在2020年下半年,每月剂量达到或超过预期水平。

2020年,常规免疫服务面临严峻挑战,COVID-19大流行造成了近代史上最广泛和最大的全球性破坏。尽管最新的覆盖率轨迹表明一些地区正在恢复,但由于免疫接种服务滞后、SARS-CoV-2持续传播以及大流行前疫苗覆盖率的持续差距,到2020年底,仍有数百万儿童未接种或未接种预防疾病疫苗,这些差距可能会扩大到2021年。加强常规免疫接种数据系统和针对资源和外联的努力将至关重要,以最大限度地降低可用疫苗预防的疾病爆发的风险,帮助在大流行期间错过常规疫苗接种的儿童,并加快在今后十年实现更高和更公平的疫苗接种覆盖率方面取得进展。

原文出处

Estimating global and regional disruptions to routine childhood vaccine coverage during the COVID-19 pandemic in 2020: a modelling study

https://doi.org/10.1016/S0140-6736(21)01337-4

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    2021-07-21 毛八一

    厉害

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=1001329, encodeId=15761001329be, content=厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210626/900a9c0ec4a245d8a0d727a2c1d683e4/264ab89a7e48415bb6b112ad9e576459.jpg, createdBy=e8835534670, createdName=毛八一, createdTime=Wed Jul 21 09:14:03 CST 2021, time=2021-07-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1001328, encodeId=9edc1001328e8, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210626/900a9c0ec4a245d8a0d727a2c1d683e4/264ab89a7e48415bb6b112ad9e576459.jpg, createdBy=e8835534670, createdName=毛八一, createdTime=Wed Jul 21 09:13:57 CST 2021, time=2021-07-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1581704, encodeId=b6221581e04ae, content=<a href='/topic/show?id=e61f29043a0' target=_blank style='color:#2F92EE;'>#免疫接种#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=29043, encryptionId=e61f29043a0, topicName=免疫接种)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=69e416863955, createdName=12498ca5m88暂无昵称, createdTime=Tue Jul 20 15:33:59 CST 2021, time=2021-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1000764, encodeId=e26f1000e64da, content=认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=b3545492917, createdName=smart Ren, createdTime=Mon Jul 19 07:00:13 CST 2021, time=2021-07-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1029748, encodeId=add61029e4806, content=新冠肺炎,疫情何时才能消失, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=公卫新人, createdTime=Mon Jul 19 03:33:59 CST 2021, time=2021-07-19, status=1, ipAttribution=)]
    2021-07-21 毛八一

    学习

    0

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    2021-07-19 smart Ren

    认真学习

    0

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    2021-07-19 公卫新人

    新冠肺炎,疫情何时才能消失

    0

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