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福建沿海城市鼠腺病毒和沙粒病毒调查及进化分析

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目的 了解福建省沿海城市鼠类携带病毒及病毒基因特征情况.方法 采集宁德、福州、泉州和漳州4市鼠肠道组织样本,采用巢式PCR扩增腺病毒DNA polymerase(DPOL)基因,RT-PCR扩增沙粒病毒large(L)基因,采用生物信息学软件进行同源性和遗传特征分析.结果 本调查共捕获152只鼠,腺病毒阳性率为4.61%,野鼠阳性率为5.26%,家鼠阳性率为4.21%.司氏屋顶鼠、褐家鼠、黄胸鼠和黄毛鼠检出腺病毒,首次在司氏屋顶鼠中检出鼠腺病毒.相关因素分析显示,不同鼠种、性别、鼠龄和生境,鼠腺病毒感染率差异无统计学意义.序列分析表明福建沿海城市鼠类感染的腺病毒为鼠2型腺病毒(Murine adenovirus 2)和鼠3型腺病毒(Murine adenovirus 3),与其他地区的鼠腺病毒序列差异较大,核酸同源性介于72.25%~91.01%.所有鼠标本均未检测出沙粒病毒.结论 福建沿海城市鼠类存在腺病毒感染,但尚未发现沙粒病毒感染,这为我省进一步开展鼠腺病毒和沙粒病毒的调查研究提供有益的本底资料.
Phylogenetic analysis of adenovirus and arenavirus in rodents from coastal cities in Fujian Province
This study was aimed at exploring the infections and viral genetic characteristics in rodents from coastal cities in Fujian Province.Intestinal tissue samples were obtained from rodents in Ningde,Fuzhou,Quanzhou,and Zhangzhou city.The adenovirus DNA polymerase(DPOL)gene was analyzed by nested PCR,and the large(L)segment gene of arenavirus was as-sessed with RT-PCR.Homology and genetic characteristics were analyzed in bioinformatics software.A total of 152 rodents were captured and showed a murine adenovirus infection rate of 4.61%.The murine adenovirus infection rate was 5.26%in wild rodents and 4.21%in domestic rodents.Murine adenoviruses were detected in four rodent species:Rattus sladeni,Rattus nor-vegicus,Rattus tanezumi,and Rattus losea.This was the first time that murine adenovirus has been detected in Rattus slade-ni.Analysis of relevant factors revealed no significant differences in murine adenovirus infection rates by rodent species,sex,age,and habitat.Sequence analysis indicated that the adenoviruses infecting rodents in coastal cities of Fujian were Murine ade-novirus 2 and Murine adenovirus 3.A significant difference was observed in the sequences of murine adenoviruses with respect to those in other regions,with nucleic acid sequence identity ranging from 72.25%to 91.01%.No arenavirus was detected in any rodent specimens.Adenovirus infections were found in rodents in coastal cities of Fujian Province,but no arenavirus infec-tions were found.This study provides useful information to support further research on murine adenovirus and arenavirus in Fujian Province.

murine adenovirusarenavirusrodentphy-logenetic analysis

曾志伟、刘菁、徐国英、韩腾伟、王加熊、周淑姮、黄玲琼、肖方震

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福建省疾病预防控制中心,福建省人兽共患病研究重点实验室,福州 350012

鼠腺病毒 沙粒病毒 进化分析

2024

中国人兽共患病学报
中国微生物学会

中国人兽共患病学报

CSTPCD北大核心
影响因子:0.814
ISSN:1002-2694
年,卷(期):2024.40(11)