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4 results on '"Blanchet, Denis"'

1. Novel Chronic Anaplasmosis in Splenectomized Patient, Amazon Rainforest.

Author

Duron, Olivier, Koual, Rachid, Musset, Lise, Buysse, Marie, Lambert, Yann, Jaulhac, Benoît, Blanchet, Denis, Alsibai, Kinan Drak, Lazrek, Yassamine, Epelboin, Loïc, Deshuillers, Pierre, Michaud, Céline, and Douine, Maylis

Subjects
RICKETTSIAL diseases, GRAM-negative bacteria, GRAM-negative bacterial diseases, NATURE, ANIMALS
Abstract

We report a case of unusual human anaplasmosis in the Amazon rainforest of French Guiana. Molecular typing demonstrated that the pathogen is a novel Anaplasma species, distinct to all known species, and more genetically related to recently described Anaplasma spp. causing infections in rainforest wild fauna of Brazil. [ABSTRACT FROM AUTHOR]

Published
2022
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2. Case Report: Acute Brucellosis Due to Brucella suis in a Brazilian Gold Miner Diagnosed in French Guiana.

Author

Melzani A, Boutrou M, Sainte-Rose V, About F, Douine M, Michaud C, Nacher M, Gaillet M, Blanchet D, Lavigne JP, Demar M, O'Callaghan D, Djossou F, Keriel A, and Epelboin L

Subjects
Animals, Swine, Humans, Adult, Brazil, French Guiana, Zoonoses diagnosis, Sus scrofa, Fever, Brucella suis, Brucellosis diagnosis, Brucellosis drug therapy, Swine Diseases
Abstract

A 29-year-old Brazilian illegal gold miner developed intermittent fever. Blood cultures were positive for Gram-negative coccobacilli and, after an initial misidentification by an automated identification system, the diagnosis of brucellosis caused by Brucella suis was confirmed. We hypothesize an association with domestic or wild swine exposure. The patient responded well to standard antibiotic therapy of brucellosis. We report the first case of human brucellosis on the Guiana Shield. This report underlines the importance of considering brucellosis in the presence of a fever of unknown origin, even in the Amazonian rainforest area, where several zoonotic diseases might be considered in the differential diagnosis of unexplained fever.

Published
2023
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3. Dynamics of SARS-CoV-2 lineages in French Guiana in 2020-2021: 4 epidemic waves with cross-influences from Europe and South America.

Author

Miliu A, Lavergne A, Succo T, Laizé C, Andrieu A, Enfissi A, Enouf V, Van der Werf S, Blanchet D, Demar M, Carod JF, Carage T, Flamand C, Tirera S, Simon-Lorière E, Rousseau C, and Rousset D

Subjects
Humans, French Guiana epidemiology, Europe, Brazil, SARS-CoV-2 genetics, COVID-19 epidemiology
Abstract

Since the first cases of SARS-CoV-2 infection in Wuhan in December 2019, this RNA virus gave rise to different viral lineages with different virological, epidemiological and immunological properties. Here we describe the dynamics of circulation of SARS-CoV-2 lineages in an Amazonian South American French overseas territory, French Guiana (FG). The data analyzed are based on the general epidemic course, and genomic surveillance data come from whole genome sequencing (WGS) as well as typing PCRs. From March 2020 to October 2021, four COVID-19 epidemic waves were observed in FG with an evolution of viral lineages influenced by virus introductions from continental France and above all by land-based introductions from neighbouring countries. The third epidemic wave from March to June 2021 was driven by a predominant Gamma introduced from Brazil and a less frequent Alpha introduced from France. This coexistence was completely substituted by Delta that initiated the fourth epidemic wave., Competing Interests: Declaration of Competing Interest None., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)

Published
2022
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