Vector Competence for Dengue-2 Viruses Isolated from Patients with Different Disease Severity

被引：5

作者：

Morales-Vargas, Ronald Enrique ^{[1
]}

Misse, Dorothee ^{[2
]}

Chavez, Irwin F. ^{[3
]}

Kittayapong, Pattamaporn ^{[4
,5
]}

机构：

[1] Mahidol Univ, Fac Trop Med, Dept Med Entomol, Bangkok 10400, Thailand

[2] Univ Montpellier, IRD, CNRS, MIVEGEC, F-34394 Montpellier, France

[3] Mahidol Univ, Fac Trop Med, Dept Trop Hyg, Bangkok 10400, Thailand

[4] Mahidol Univ Salaya, Fac Sci, Ctr Vectors & Vector Borne Dis, Salaya 73170, Nakhon Pathom, Thailand

[5] Mahidol Univ, Fac Sci, Dept Biol, Rama 6 Rd, Bangkok 10400, Thailand

来源：

PATHOGENS | 2020年 / 9卷 / 10期

关键词：

dengue virus; disease severity; vector competence; AEDES-AEGYPTI; TYPE-2; VIRUS; YELLOW-FEVER; HEMORRHAGIC-FEVER; ORAL INFECTION; RAPD-PCR; SUSCEPTIBILITY; STRAINS; MOSQUITO; CORRELATE;

D O I：

10.3390/pathogens9100859

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

Dynamics of dengue serotype 2 virus isolated from patients with different disease severity, namely flu-like classic dengue fever (DF) and dengue shock syndrome (DSS) were studied in its mosquito vector Aedes aegypti. We compared isolate infectivity and vector competence (VC) among thirty two A. aegypti-viral isolate pairs. Mosquito populations from high dengue incidence area exhibited overall greater VC than those from low dengue incidence area at 58.1% and 52.5%, respectively. On the other hand, the overall infection rates for the isolates ThNR2/772 (DF, 62.3%) and ThNR2/391 (DSS, 60.9%), were significantly higher than those for isolates ThNR2/406 (DF, 55.2%) and ThNR2/479 (DSS, 54.8%). These results suggest that the efficacy of dengue virus circulation was likely to vary according to the combination between the virus strains and origin of the mosquito strains, and this may have epidemiologic implications toward the incidence of flu-like classic dengue fever (DF) and dengue shock syndrome (DSS).

引用

页码：1 / 13

页数：13

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