Institute of Poliomyelitis and Viral Encephalitides, Chumakov Federal Scientific Centre for Research and Development of Immune-and-Biological Products of the Russian Academy of Sciences (FSBSI "Chumakov FSC R&D IBP RAS"), Moscow, 108819, Russia; Sechenov First Moscow State Medical University, Moscow, 119991, Russia.
Institute of Poliomyelitis and Viral Encephalitides, Chumakov Federal Scientific Centre for Research and Development of Immune-and-Biological Products of the Russian Academy of Sciences (FSBSI "Chumakov FSC R&D IBP RAS"), Moscow, 108819, Russia.
Int J Infect Dis. 2018 Nov;76:64-69. doi: 10.1016/j.ijid.2018.08.017. Epub 2018 Sep 7.
Different polio vaccination schemes have been used in Russia: oral polio vaccine (OPV) was used in 1998-2007 and inactivated polio vaccine (IPV) followed by OPV in 2008-2014. This article presents the characteristics of vaccine-associated paralytic poliomyelitis (VAPP) cases in Russia during this period.
VAPP cases were identified through the acute flaccid paralysis surveillance system, classified by the National Expert Classification Committee. Criteria for a 'recipient VAPP' (rVAPP) case were poliomyelitis symptoms 6-30days after OPV administration, isolation of the vaccine virus, and residual paralysis 60days after disease onset. Unvaccinated cases with a similar picture 6-60days after contact with an OPV recipient were classified as 'contact VAPP' (cVAPP) cases.
During 1998-2014, 127 VAPP cases were registered: 82 rVAPP and 45 cVAPP. During the period in which only OPV was used, rVAPP cases prevailed (73.8%); cases of rVAPP were reduced during the sequential scheme period (15%). Poliovirus type 3 (39.5%) and type 2 (23.7%) were isolated more often. Vaccine-derived poliovirus types 1, 2, and 3 were isolated from three cases of cVAPP. The incidence of VAPP cases was higher during the period of OPV use (1 case/1.59 million OPV doses) than during the sequential scheme period (1 case/4.18 million doses).
The risk of VAPP exists if OPV remains in the vaccination schedule.
俄罗斯曾使用过不同的脊髓灰质炎疫苗接种方案:1998-2007 年使用口服脊髓灰质炎疫苗(OPV),2008-2014 年使用灭活脊髓灰质炎疫苗(IPV)后接着使用 OPV。本文介绍了在此期间俄罗斯疫苗相关麻痹性脊髓灰质炎(VAPP)病例的特征。
通过急性弛缓性麻痹监测系统发现 VAPP 病例,并由国家专家分类委员会进行分类。“受种者 VAPP”(rVAPP)病例的标准为 OPV 接种后 6-30 天出现脊髓灰质炎症状、分离出疫苗病毒以及发病后 60 天残留麻痹。与 OPV 受种者接触后 6-60 天出现类似症状且未接种疫苗的病例被归类为“接触者 VAPP”(cVAPP)病例。
1998-2014 年共登记了 127 例 VAPP 病例:82 例 rVAPP 和 45 例 cVAPP。仅使用 OPV 期间 rVAPP 病例占多数(73.8%);序贯方案期间 rVAPP 病例减少(15%)。分离出的脊灰病毒 3 型(39.5%)和 2 型(23.7%)更为常见。3 例 cVAPP 分离出疫苗衍生的脊灰病毒 1、2 和 3 型。OPV 使用期间 VAPP 病例的发病率较高(每 159 万 OPV 剂 1 例),而序贯方案期间发病率较低(每 418 万剂 1 例)。
如果 OPV 仍在接种计划中,VAPP 的风险仍然存在。