Epidemiological and genetic characteristics of sapovirus clusters in Changzhou schools from 2019 to 2022
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摘要:
目的 了解常州市学校札如病毒(SaV)聚集性疫情的流行病学及病毒基因特征,为学校处置聚集性呕吐腹泻事件提供参考。 方法 收集2019—2022年常州市SaV聚集性疫情的流行病学资料和实验室检测数据进行流行病学分析,对SaV阳性样本进行VP1部分基因扩增和测序,并进行系统进化分析。 结果 2019—2022年常州市中小学及幼儿园共报告SaV聚集性疫情8起,报告病例数118例,总罹患率为1.47%,罹患人数中位数为15例。疫情流行时间集中在9—12月,场所分布为幼儿园6起,小学2起;主要临床表现为呕吐(113例,95.76%)、腹痛(39例,33.05%)、腹泻(16例,13.56%)。8起疫情中17株样本株测序成功,其中5起疫情由GII.3基因型引起,另外3起分别为GI.1、GI.3和GII.2。GI和GII是本地区主要型别,GII.3为聚集性疫情流行优势株。 结论 SaV是学校聚集性呕吐腹泻疫情中的重要病原体,应对其进行持续监测,进一步了解其流行特征及病毒基因型分布情况,为学校疫情防控提供科学依据。 Abstract:Objective To analyze the epidemiological characteristics and genetic characteristics of sapovirus (SaV) in a cluster of schools in Changzhou, so as to provide a reference for the treatment of clustered vomiting and diarrhea events in schools. Methods The epidemiological data and laboratory test data of sapovirus clusters in Changzhou from 2019 to 2022 were collected and analyzed. Partial VP1 genes of SaV positive samples were amplified and sequenced for phylogenetic analysis. Results A total of 8 cases of clusters of SaV epidemics were reported in Changzhou City from 2019 to 2022, with 118 reported cases. The total attack rate was 1.47%, and the median of the attack number was 15. There were 6 outbreaks in kindergartens and 2 outbreaks in primary schools, which were reported in the epidemic period from September to December. The main clinical manifestations were vomiting (113 cases, 95.76%), abdominal pain (39 cases, 33.05%), and diarrhea (16 cases, 13.56%). Among the 8 outbreaks, 17 sample strains were successfully sequenced. 5 outbreaks were GII.3, and the other 3 outbreaks were GI.1, GI.3 and GII.2. GI and GII were the main genotypes in this area, and GII.3 was the predominant strain. Conclusion SaV is an important pathogen in the clusters of vomiting and diarrhea in schools after the transmission of norovirus. Continuous surveillance of SaV should be carried out to further understand its epidemiological characteristics and genotype distribution, so as to provide scientific basis for the prevention and control of the epidemic in schools. -
Key words:
- Enterovirus infections /
- Disease outbreaks /
- Incidence /
- Genes /
- Viruses
1) 利益冲突声明 所有作者声明无利益冲突。 -
表 1 常州市2019—2022年札如病毒疫情基本情况
Table 1. Basic situation of SaV epidemic in Changzhou City from 2019 to 2022
年份 地区 临床特征 实验室检验 测序分型结果 病例数 呕吐 腹痛 腹泻 人数 阳性人数 2019 武进区 17 17(100.00) 3(17.65) 2(11.76) 10 6(60.00) GII.3 天宁区 7 7(100.00) 0 0 7 2(28.57) GII.3 天宁区 11 8(72.73) 2(18.18) 2(18.18) 11 3(27.27) GII.2 2020 新北区 8 7(87.50) 3(37.50) 2(25.00) 8 6(75.00) GI.1 2021 武进区 17 16(94.12) 0 2(11.76) 14 11(78.57) GII.3 金坛区 21 21(100.00) 12(57.14) 3(14.29) 22 21(95.45) GII.3 金坛区 15 15(100.00) 2(13.33) 2(13.33) 19 6(31.58) GI.3 2022 金坛区 22 22(100.00) 17(77.27) 3(13.64) 33 20(60.61) GII.3 注:()内数字为检出率或阳性率/%。 -
[1] MAGWALIVHA M, KABUE J P, TRAORE A N, et al. Prevalence of human sapovirus in low and middle income countries[J]. Adv Virol, 2018, 2018: 5986549. [2] EULLER-NICOLAS G, LE MENNEC C, SCHAEFFER J, et al. Human sapovirus replication in human intestinal enteroids[J]. J Virol, 2023, 97(4): e0038323. doi: 10.1128/jvi.00383-23 [3] SIEBENGA J, KRONEMAN A, VENNEMA H, et al. Food-borne viruses in Europe network report: the norovirus GⅡ. 4 2006b (for US named Minerva-like, for Japan Kobe034-like, for UK V6) variant now dominant in early seasonal surveillance[J]. Euro Surveill, 2008, 13(2): 8009. [4] OKA T, WANG Q, KATAYAMA K, et al. Comprehensive review of human sapoviruses[J]. Clin Microbiol Rev, 2015, 28(1): 32-53. doi: 10.1128/CMR.00011-14 [5] OKA T, MORI K, IRITANI N, et al. Human sapovirus classification based on complete capsid nucleotide sequences[J]. Arch Virol, 2012, 157(2): 349-352. doi: 10.1007/s00705-011-1161-2 [6] 江苏省疾病预防控制中心. 江苏省病毒性胃肠炎聚集性和暴发疫情监测方案(2020年版)[A]. 2020-03-30.Jiangsu Center for Disease Control and Prevention. Surveillance program for clustering and outbreak of viral gastroenteritis in Jiangsu Province (2020 version)[A]. 2020-03-30. (in Chinese) [7] 廖巧红, 冉陆, 靳淼, 等. 诺如病毒感染暴发调查和预防控制技术指南(2015版)[J]. 中国病毒病杂志, 2015, 5(6): 448-458. doi: 10.16505/j.2095-0136.2015.06.003LIAO Q H, RAN L, JIN M, et al. Guidelines on outbreak investigation, prevention and control of Norovirus infection(2015)[J]. Chin J Viral Dis, 2015, 5(6): 448-458. (in Chinese) doi: 10.16505/j.2095-0136.2015.06.003 [8] 中华人民共和国卫生部. 感染性腹泻诊断标准: WS 271—2007[S]. 2007-04-17.Ministry of Health of the PRC. Diagnostic criteria for infectious diarrhea: WS 271-2007[S]. 2007-04-17. (in Chinese) [9] THONGPRACHUM A, KHAMRIN P, PHAM N T K, et al. Multiplex RT-PCR for rapid detection of viruses commonly causing diarrhea in pediatric patients[J]. J Med Virol, 2017, 89(5): 818-824. doi: 10.1002/jmv.24711 [10] BECKER-DREPS S, GONZÁLEZ F, BUCARDO F, et al. Sapovirus: an emerging cause of childhood diarrhea[J]. Curr Opin Infect Dis, 2020, 33(5): 388-397. doi: 10.1097/QCO.0000000000000671 [11] VARELA M F, RIVADULLA E, LEMA A, et al. Human sapovirus among outpatients with acute gastroenteritis in spain: a one-year study[J]. Viruses, 2019, 11(2): 144. doi: 10.3390/v11020144 [12] OKITSU S, KHAMRIN P, THONGPRACHUM A, et al. Diversity of human sapovirus genotypes detected in Japanese pediatric patients with acute gastroenteritis, 2014-2017[J]. J Med Virol, 2021, 93(8): 4865-4874. doi: 10.1002/jmv.26934 [13] 于悦, 郭新慧, 严寒秋, 等. 札如病毒急性胃肠炎暴发特征系统综述[J]. 中华流行病学杂志, 2019, 40(1): 93-98. doi: 10.3760/cma.j.issn.0254-6450.2019.01.019YU Y, GUO X H, YAN H Q, et al. Systematic review on the characteristics of acute gastroenteritis outbreaks caused by sapovirus[J]. Chin J Epidemiol, 2019, 40(1): 93-98. (in Chinese) doi: 10.3760/cma.j.issn.0254-6450.2019.01.019 [14] 王虹玲, 张辉, 吴昺. 舟山市海产贝类和食源性腹泻病例中肠道腹泻病毒监测[J]. 中国食品卫生杂志, 2018, 30(4): 415-420. doi: 10.13590/j.cjfh.2018.04.016WANG H L, ZHANG H, WU B. Monitoring analysis of diarrhea virus from marine seashellsand foodborne diarrhea cases in Zhoushan City[J]. Chin J Food Hyg, 2018, 30(4): 415-420. (in Chinese) doi: 10.13590/j.cjfh.2018.04.016 [15] HAN S, HYUN S W, SON J W, et al. Innovative nonthermal technologies for inactivation of emerging foodborne viruses[J]. Compr Rev Food Sci Food Saf, 2023, 22(4): 3395-3421. doi: 10.1111/1541-4337.13192 [16] JIAO Y, HAN T, QI X, et al. Genotypes diversity of acute gastroenteritis outbreaks caused by human sapovirus-Beijing municipality, China, 2015-2021[J]. China CDC Wkly, 2023, 5(28): 625-631. doi: 10.46234/ccdcw2023.119 [17] BECKER-DREPS S, BUCARDO F, VINJÉ J. Sapovirus: an important cause of acute gastroenteritis in children[J]. Lancet Child Adolesc Health, 2019, 3(11): 758-759. doi: 10.1016/S2352-4642(19)30270-6 [18] KUMTHIP K, KHAMRIN P, MANEEKARN N. Molecular epidemiology and genotype distributions of noroviruses and sapoviruses in Thailand 2000-2016: a review[J]. J Med Virol, 2018, 90(4): 617-624. doi: 10.1002/jmv.25019 [19] 赵茗茗, 吴莺. 札如病毒的流行现状与研究进展[J]. 热带医学杂志, 2022, 22(5): 737-740. doi: 10.3969/j.issn.1672-3619.2022.05.032ZHAO M M, WU Y. The epidemic status and research progress of sapovirus[J]. J Trop Med, 2022, 22(5): 737-740. (in Chinese) doi: 10.3969/j.issn.1672-3619.2022.05.032 [20] 郝夏琼, 任燕, 许少坚, 等. 深圳市龙华区2019年札如病毒基因分型以及进化分析[J]. 中国热带医学, 2021, 21(3): 247-250. https://www.cnki.com.cn/Article/CJFDTOTAL-RDYX202103013.htmHAO X Q, REN Y, XU S J, et al. Genotyping and evolutionary analysis of Sapovirus in Longhua District of Shenzhen in 2019[J]. Chin Trop Med, 2021, 21(3): 247-250. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-RDYX202103013.htm [21] WANG J J, YUAN L, KONG X G, et al. Two gastroenteritis outbreaks caused by sapovirus in Shenzhen, China[J]. J Med Virol, 2018, 90(11): 1695-1702. doi: 10.1002/jmv.25236 [22] TAKAGI H, OKA T, SHIMOIKE T, et al. Human sapovirus propagation in human cell lines supplemented with bile acids[J]. Proc Natl Acad Sci USA, 2020, 117(50): 32078-32085. doi: 10.1073/pnas.2007310117 [23] 冯太聪, 胡永迪, 茅俭英, 等. 上海市宝山区2017-2019年学校札如病毒聚集性疫情流行特征[J]. 中国学校卫生, 2022, 43(12): 1809-1811. https://www.cnki.com.cn/Article/CJFDTOTAL-XIWS202212023.htmFENG T C, HU Y D, MAO J Y, et al. Epidemiological characteristics of Sapovirus virus clustered vomiting epidemic in Baoshan District in Shanghai from 2017 to 2019[J]. Chin J Sch Health, 2022, 43(12): 1809-1811. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XIWS202212023.htm -

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