Multifoci and multiserotypes circulation of dengue virus in Senegal between 2017 and 2018.

Multifoci and multiserotypes circulation of dengue virus in Senegal between 2017 and 2018.
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DOI:
10.1186/s12879-021-06580-z
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发表时间:
2021-08-24
影响因子:
3.7
通讯作者:
Faye O
Faye O
中科院分区:
医学3区
文献类型:
--
作者:
Dieng I;Ndione MHD;Fall C;Diagne MM;Diop M;Gaye A;Barry MA;Diop B;Ndiaye M;Bousso A;Fall G;Loucoubar C;Faye O;Sall AA;Faye O

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登革热是一种由蚊子传播的疾病,与自限性的危及生命的疾病有关。十九世纪首次在塞内加尔发现,尽管近十年来其发病率不断上升,但我们对流行菌株遗传多样性的了解仍存在重大知识空白。本研究重点介绍了 2017 年 1 月至 2018 年 12 月期间流行的血清型和基因型及其在塞内加尔所有地区的时空分布。我们使用从 11 个采样区收集的 56 株登革热病毒 (DENV) 毒株进行分析:39 株来自塞内加尔所有地区,17 株来自该国特定地区 Thiès。使用两个实时 RT-qPCR 系统来确认登革热感染和相应的血清型。为了进行分子表征,对 CprM 基因进行了测序,并进行系统发育分析以确定血清型和基因型分配。所有使用的方法均检测到三种登革热病毒血清型(DENV-1-3)。在 50% (28/56) 的分离株中检测到 DENV-3,其次是 DENV-1 和 DENV-2,各占分离株的 25% (14/56)。 DENV-3属于基因型III,DENV-1属于基因型V,DENV-2属于Cosmopolitan基因型。在 7 个采样地点检测到血清型 3,并在 Thiès、Fatick 和 Richard-toll 中观察到不同血清型的共同循环。这些结果强调需要在塞内加尔进行持续的登革热病毒监测,以发现登革热病毒病例、确定循环血清型/基因型并防止严重病例的传播和发生。在线版本包含可在 10.1186/s12879-021-06580-z 获取的补充材料。
Dengue fever is a mosquito born disease associated with self-limited to life threatening illness. First detected in Senegal in the nineteenth century, and despite its growing incidence this last decade, significant knowledge gaps exist in our knowledge of genetic diversity of circulating strains. This study highlights the circulating serotypes and genotypes between January 2017 and December 2018 and their spatial and temporal distribution throughout all regions of Senegal. We used 56 dengue virus (DENV) strains for the analysis collected from 11 sampling areas: 39 from all regions of Senegal, and 17 isolates from Thiès, a particular area of the country. Two real time RT-qPCR systems were used to confirm dengue infection and corresponding serotypes. For molecular characterization, CprM gene was sequenced and submitted to phylogenetic analysis for serotypes and genotypes assignment. Three dengue virus serotypes (DENV-1–3) were detected by all used methods. DENV-3 was detected in 50% (28/56) of the isolates, followed by DENV-1 and DENV-2, each representing 25% (14/56) of the isolates. DENV-3 belongs to genotype III, DENV-1 to genotype V and DENV-2 to Cosmopolitan genotype. Serotype 3 was detected in 7 sampling locations and a co-circulation of different serotypes was observed in Thiès, Fatick and Richard-toll. These results emphasize the need of continuous DENV surveillance in Senegal to detect DENV cases, to define circulating serotypes/genotypes and to prevent the spread and the occurrence of severe cases. The online version contains supplementary material available at 10.1186/s12879-021-06580-z.
DOI: 10.3390/v13010057
发表时间: 2021-01-04
期刊: Viruses
影响因子: --
作者:
Dieng I;Cunha M;Diagne MM;Sembène PM;Zanotto PMA;Faye O;Faye O;Sall AA
通讯作者: Sall AA
DOI: 10.1126/science.aac5017
发表时间: 2015-09-18
期刊: Science (New York, N.Y.)
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DOI: 10.1155/2021/8817987
发表时间: 2021
影响因子: 2.2
作者:
Dieng I;Diarra M;Diagne MM;Faye M;Dior Ndione MH;Ba Y;Diop M;Ndiaye EH;Marinho de Andrade Zanotto P;Diop B;Ndiaye M;Bousso A;Dia N;Diallo M;Barry A;Fall G;Loucoubar C;Sall AA;Faye O;Faye O
通讯作者: Faye O
中国广东省自然群体中具有 3 个重组区的 1 型重组登革热病毒的鉴定。
DOI: 10.1007/s00705-008-0090-1
发表时间: 2008
影响因子: 2.7
作者:
Chen SP;Yu M;Jiang T;Deng YQ;Qin CF;Han JF;Qin ED
通讯作者: Qin ED
DOI: 10.1016/s0923-2516(06)80135-4
发表时间: 1992-11-01
期刊: RESEARCH IN VIROLOGY
影响因子: --
作者:
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