KI polyomavirus,which was firstly discovered in 2007,is a new human polyomavirus belonging to Polyomaviridae and containing circular double-strand genomic DNA.This study was based on identification assay of KI polyoma...KI polyomavirus,which was firstly discovered in 2007,is a new human polyomavirus belonging to Polyomaviridae and containing circular double-strand genomic DNA.This study was based on identification assay of KI polyomavirus reported.Total 2293 clinical sputum specimens from children under 3 years old were collected and screened from Wenzhou Medical College affiliated Wenling Hospital,Zhejiang Province.A KI polyomavirus was detected and identified,the positive rate was 0.04%.The sequences of PCR products was identical to that of the viral capsid protein(VP1) gene derived from KI polyomavirus.The results strongly suggested that the KI polyomavirus was found firstly in Chinese children with acute lower respiratory tract infections from Zhejiang region.This study provided new information for further investigation of etiopathogenisis and diagnosis in children with lower respiratory tract infections.展开更多
目的了解KI多瘤病毒(karolinska institutet polyomavirus,KIPyV)在我国福州儿童呼吸道感染中的检出情况及与呼吸道疾病的关系,并对毒株进行全基因组序列测定和种系分析。方法收集2007年11月~2014年3月在福建省福州市妇幼保健院因呼...目的了解KI多瘤病毒(karolinska institutet polyomavirus,KIPyV)在我国福州儿童呼吸道感染中的检出情况及与呼吸道疾病的关系,并对毒株进行全基因组序列测定和种系分析。方法收集2007年11月~2014年3月在福建省福州市妇幼保健院因呼吸道感染住院的重症监护病房(PICU)的235例小儿鼻咽抽取物样本,通过巢式PCR扩增法用2对特异引物对KIPyV的VP1基因片段进行检测。对检测出的1株KIPyV(FZ52)用4对全基因序列引物进行扩增和拼接,获得该株病毒的全基因组序列,上传GenBank并与基因库中国外其他8株KIPyV的全基因组序列和氨基酸序列进行比对,并做种系分析。结果从中发现1例KIPyV感染阳性病例,检测阳性率为0.4%,没有检测出KIPyV与其他呼吸道病毒的混合感染,如甲、乙型流感病毒(influenza type A or B virus,Flu A or B)、呼吸道合胞病毒(respiratory syncytial virus,RSV)、人偏肺病毒(human metapnumovirus,HMPV)、人博卡病毒(human bocavirus,HBoV)、WU多瘤病毒(WU polyomavirus,WUPyV)等。与参考株斯德哥尔摩的S60相比,有8个核苷酸不同,推导出的氨基酸序列有3处不同。同时,也将该序列与国内毒株的部分核苷酸序列进行比对分析。FZ52株与斯德哥尔摩的S380株关系较近,FZ52株、S380株与聚成一簇的S350株和布里斯班的B003株关系较近。结论种系分析显示中国福建福州的FZ52株与瑞典的S380株关系最近。展开更多
文摘KI polyomavirus,which was firstly discovered in 2007,is a new human polyomavirus belonging to Polyomaviridae and containing circular double-strand genomic DNA.This study was based on identification assay of KI polyomavirus reported.Total 2293 clinical sputum specimens from children under 3 years old were collected and screened from Wenzhou Medical College affiliated Wenling Hospital,Zhejiang Province.A KI polyomavirus was detected and identified,the positive rate was 0.04%.The sequences of PCR products was identical to that of the viral capsid protein(VP1) gene derived from KI polyomavirus.The results strongly suggested that the KI polyomavirus was found firstly in Chinese children with acute lower respiratory tract infections from Zhejiang region.This study provided new information for further investigation of etiopathogenisis and diagnosis in children with lower respiratory tract infections.
文摘目的了解KI多瘤病毒(karolinska institutet polyomavirus,KIPyV)在我国福州儿童呼吸道感染中的检出情况及与呼吸道疾病的关系,并对毒株进行全基因组序列测定和种系分析。方法收集2007年11月~2014年3月在福建省福州市妇幼保健院因呼吸道感染住院的重症监护病房(PICU)的235例小儿鼻咽抽取物样本,通过巢式PCR扩增法用2对特异引物对KIPyV的VP1基因片段进行检测。对检测出的1株KIPyV(FZ52)用4对全基因序列引物进行扩增和拼接,获得该株病毒的全基因组序列,上传GenBank并与基因库中国外其他8株KIPyV的全基因组序列和氨基酸序列进行比对,并做种系分析。结果从中发现1例KIPyV感染阳性病例,检测阳性率为0.4%,没有检测出KIPyV与其他呼吸道病毒的混合感染,如甲、乙型流感病毒(influenza type A or B virus,Flu A or B)、呼吸道合胞病毒(respiratory syncytial virus,RSV)、人偏肺病毒(human metapnumovirus,HMPV)、人博卡病毒(human bocavirus,HBoV)、WU多瘤病毒(WU polyomavirus,WUPyV)等。与参考株斯德哥尔摩的S60相比,有8个核苷酸不同,推导出的氨基酸序列有3处不同。同时,也将该序列与国内毒株的部分核苷酸序列进行比对分析。FZ52株与斯德哥尔摩的S380株关系较近,FZ52株、S380株与聚成一簇的S350株和布里斯班的B003株关系较近。结论种系分析显示中国福建福州的FZ52株与瑞典的S380株关系最近。