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Role of Aedes aegypti and Aedes albopictus during the 2011 dengue fever epidemics in Hanoi, Vietnam

Asian Pacific Journal of Tropical Medicine 2015年第7期8卷 541-546页

作者： Pham Thi Kim Lien Vu Trong Duoc Laurent Gavotte Emmanuel Cornillot Phan Thi Nga laurence briant Roger Frutos Tran Nhu Duong National Institute of Hygiene and Epidemiology CPBS UMR 5236 CNRS-UM1-UM2 1919 route de Mende 34293 Montpellier Cedex 5France ISEM UMR 5554 CNRS-UM2-IRD Université Montpellier 2 CC065 Place E. Bataillon34095 Montpellier Cedex 5 France CPBS UMR 5236 CNRS-UM1-UM2 1919 route de Mende 34293 Montpellier Cedex 5France Intertryp UMR 17 Cirad-IRD Campus International de Baillarguet34398 Montpellier Cedex 5 France

Objective: To record the human cases of dengue fever(DF) and investigate the Aedes mosquito species circulating during the Hanoi 2011 DF epidemics. Methods: 24 different outbreak points were recorded in 8 districts between August and December 2011. Results: 140 patients were hospitalized following dengue diagnostic with a predominance of males(59.3%) and the 15-34 age class. Only DENV-1(11.27%) and DENV-2(88.73%) serotypes were detected in human samples. Mosquito sampling performed in and around patients households revealed the predominance of Aedes aegypti(95.15%) versus Aedes albopictus(4.85%). There is a positive correlation between the population density of Aedes aegypti and the number of human cases and duration of outbreaks. Conclusions: This was not observed for Aedes albopictus. 3 pools of Aedes aegypti were positive with dengue virus, two with DENV-1 and one with DENV-2.

关键词： Aedes aegypti Aedes albopictus Dengue Vector density

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HIV-1 Assembly, Release and Maturation

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World Journal of AIDS 2011年第4期1卷 111-130页

作者： laurence briant Bernard Gay Christian Devaux Nathalie Chazal 不详

Late steps of HIV-1 life cycle are determinant for optimal dissemination of the virus to new target cells. These steps include assembly of structural precursors, budding of the new particle and maturation into fully infectious virions. Each step is finely tuned and timely regulated to allow the appropriate assembly of structural components, the efficient recruitment of viral and cell partners and the timely regulated proteolytic processing of the protein precursors. Despite the huge number of studies devoted to the definition of molecular mechanisms regulating these steps, a number of question remains to be answered before they are clearly apprehended. The elucidation of the role played by each viral proteins, nucleic acids as well as host-encoded factors will provide new clues in the understanding of the retroviral assembly/maturation process and will allow further development of new antiviral compounds. This review reports the most recent progress as well as the questions that remain to be answered in the field of HIV-1 assembly, release and maturation. Finally, we also describe the data available on the design and use of new antiretroviral drugs targeting these specific steps of the retroviral replication.

关键词： HIV-1 Assembly Maturation Release Gag Antiviral Molecule

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Surveillance of dengue and chikungunya infection in Dong Thap,Vietnam:A 13-month study

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Asian Pacific Journal of Tropical Medicine 2016年第1期9卷 36-40页

作者： Pham Thi Kim Lien laurence briant Truong Ba Tang Bui Minh Trang Laurent Gavotte Emmanuel Comillot Vu Trong Duoc Tran Nhu Duong Roger Frutos Phan Thi Nga National Institute of Hygiene and Epidemiology University of Montpellier Department of Biology Dong Thap General Hospital Cirad TA-A17/GCampus International de Raillarguet

Objective:To establish a surveillance in Dong Thap,at the border with Cambodia by assessing the presence of DHNV serotypes and CHIKV among patients hospitalized at Dong Thap general ***:Cross-sectional descriptive analysis was conducted on a cohort of 131 patients hospitalized with acute fever and symptoms compatible with dengue or *** study was conducted from January 2012 to February *** full clinical picture was established as well as serological and molecular *** analysis was sequentially performed on blood samples collected on admission and an average of seven days after *** detection of IgM antibody to DENV was performed by IgM capture ELTSA and the detection of DENV and CHIKV RNA was done by reverse-transcription multiplex ***:101 patients out of 131(77%) were confirmed with *** four dengue serotypes were detected with a predominance of DENV2 and *** chikungunya infection was detected although reported in neighboring Cambodia.A differential efficiency of serological dengue detection was *** was 29%upon admission and 53%after seven days on the same patients.30 patients out of 131(23%) were negative with both DENV and ***:Dengue is at risk of being underestimated and chikungunya is not systematically *** in detection and surveillance procedures are therefore discussed to increase efficiency of dengue detection and continue the monitoring the emergence of CHIKV in Dong Thap province and in Vietnam.

关键词： Dengue Chikungunya Arbovirus Dong ThapVietnam

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HIV-1 Assembly, Release and Maturation

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World Journal of AIDS（艾滋病） 2011年第4期

作者： laurence briant Bernard Gay Christian Devaux Nathalie Chazal

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