甘肃省疾病预防控制中心病毒实验室甘肃省传染病病原学重点实验室;
了解甘肃省前3例猴痘病例流行病学特征和基因组特征及遗传变异情况,为甘肃省猴痘的防控提供科学依据。对甘肃省报告的前3例猴痘病例开展流行病学调查并采集相应样本,利用Illumina mini-seq二代测序仪完成猴痘病毒全基因组测序和数据处理,采用生物信息学软件对病毒全基因组序列进行遗传特征、谱系分型和进化树溯源分析。甘肃省报告的前3例猴痘病例均症状较轻,主要为疱疹伴瘙痒和神经疼痛,无发热等全身症状,主要传播途径为男男性行为密切接触,但使用安全套可能无法有效阻断传播;测序获得的全基因组序列全长分别为病例1(GanSu-JC)197 199bp;病例2(GanSu-LZ)197 200bp;病例3(GanSu-BY)197 199bp,基因组覆盖度分别为97.12%、99.37%、99.38%,与参考序列(NC_063383.1)相比3例病例猴痘病毒基因组序列分别存在78、88、87处核苷酸突变,分别有38、42、42个氨基酸发生突变,涉及宿主免疫调控、病毒致病性等生物特性发生改变;系统遗传进化分析显示,GanSu-JC序列与韩国提交的序列遗传进化亲缘关系较近;GanSu-LZ和GanSu-BY序列与中国深圳、云南提交的序列遗传进化亲缘关系较近,均属于Ⅱb C.1谱系。甘肃省报告的前3例猴痘病例均为西非亚型Ⅱb C.1谱系,兰州市2023年底之前很可能已存在猴痘病例,提示甘肃应加强猴痘防控宣教、鉴别诊断和防治工作。
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基本信息:
DOI:10.13242/j.cnki.bingduxuebao.240122
中图分类号:R181.3;R511
引用信息:
[1]张慧,王彪,张晓曙等.甘肃省前3例猴痘病例流行病学特点和基因组序列特征分析[J].病毒学报,2025,41(02):354-360.DOI:10.13242/j.cnki.bingduxuebao.240122.
基金信息:
甘肃省青年基金科技计划项目(项目号:20JR5RA141),题目:下呼吸道病原与NETs标志物相关性研究; 甘肃省自然科学基金(项目号:20JR5RA142),题目:甘肃省疱疹性咽峡炎病原学监测研究~~