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1. Re-Emergence of DENV-3 in French Guiana: Retrospective Analysis of Cases That Circulated in the French Territories of the Americas from the 2000s to the 2023–2024 Outbreak.

Author

Lagrave, Alisé, Enfissi, Antoine, Tirera, Sourakhata, Demar, Magalie Pierre, Jaonasoa, Jean, Carod, Jean-François, Ramavoson, Tsiriniaina, Succo, Tiphanie, Carvalho, Luisiane, Devos, Sophie, Dorleans, Frédérique, Leon, Lucie, Berlioz-Arthaud, Alain, Musso, Didier, Lavergne, Anne, and Rousset, Dominique

Subjects
MOLECULAR epidemiology, NUCLEOTIDE sequencing, DENGUE, ARBOVIRUSES, TWO thousands (Decade)
Abstract

French Guiana experienced an unprecedented dengue epidemic during 2023–2024. Prior to the 2023–2024 outbreak in French Guiana, DENV-3 had not circulated in an epidemic manner since 2005. We therefore studied retrospectively the strains circulating in the French Territories of the Americas (FTA)—French Guiana, Guadeloupe, and Martinique—from the 2000s to the current epidemic. To this end, DENV-3 samples from the collection of the National Reference Center for Arboviruses in French Guiana (NRCA-FG) were selected and sequenced using next-generation sequencing (NGS) based on Oxford Nanopore Technologies, ONT. Phylogenetic analysis showed that (i) the 97 FTA sequences obtained all belonged to genotype III (GIII); (ii) between the 2000s and 2013, the regional circulation of the GIII American-I lineage was the source of the FTA cases through local extinctions and re-introductions; (iii) multiple introductions of lineages of Asian origin appear to be the source of the 2019–2021 epidemic in Martinique and the 2023–2024 epidemic in French Guiana. Genomic surveillance is a key factor in identifying circulating DENV genotypes, monitoring strain evolution, and identifying import events. [ABSTRACT FROM AUTHOR]

Published
2024
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3. Comparison of Mycobacterium ulcerans (Buruli ulcer) and Leptospira sp. (Leptospirosis) dynamics in urban and rural settings

Author

Combe, Marine, Gozlan, Rodolphe Elie, Jagadesh, Soushieta, Velvin, Camilla Jensen, Ruffine, Rolland, Demar, Magalie Pierre, Couppié, Pierre, Djossou, Félix, Nacher, Mathieu, Epelboin, Loïc, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU de la Martinique [Fort de France]-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], and ANR-17-CE35-0006,PRIME,PRédire la niche écologique de souches Infectieuses de pathogènes humains comme un facteur déterminant dans l'éMErgence des maladies infectieuses(2017)

Subjects
Rural Population, Bacterial Diseases, Urban Population, RC955-962, Pathology and Laboratory Medicine, Microbiology, Urban Environments, Spatio-Temporal Analysis, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Arctic medicine. Tropical medicine, Zoonoses, Environmental Microbiology, Medicine and Health Sciences, Humans, Leptospirosis, Microbial Pathogens, Petrology, [SDV.EE.SANT]Life Sciences [q-bio]/Ecology, environment/Health, Leptospira, Sedimentary Geology, Mycobacterium ulcerans, Bacteria, Ecology and Environmental Sciences, Organisms, Biology and Life Sciences, Geology, Tropical Diseases, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Terrestrial Environments, French Guiana, Bacterial Pathogens, Actinobacteria, Infectious Diseases, Medical Microbiology, Earth Sciences, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Sediment, Seasons, Public aspects of medicine, RA1-1270, Pathogens, Research Article, Neglected Tropical Diseases
Abstract

Background Zoonotic pathogens respond to changes in host range and/or pathogen, vector and host ecology. Environmental changes (biodiversity, habitat changes, variability in climate), even at a local level, lead to variability in environmental pathogen dynamics and can facilitate their transmission from natural reservoirs to new susceptible hosts. Whilst the environmental dynamics of aquatic bacteria are directly linked to seasonal changes of their habitat they also rely on the ecological processes underpining their transmission. However data allowing the comparison of these ecological processes are lacking. Here we compared the environmental dynamics of generalist and vector-borne aquatic bacterial pathogens in the same unit of time and space, and across rural and urban habitats in French Guiana (South America). Principal findings Using Leptospira sp. and Mycobacterium ulcerans we performed an environmental survey that allowed the detection of both pathogens in urban vs. rural areas, and during rainy vs. dry weather conditions. All samples were subjected to qPCR amplifications of LipL32 (Leptospira sp.) and IS2404 and KR (M. ulcerans) genetic markers. We found (i) a greater presence of M. ulcerans in rural areas compared with Leptospira sp., (ii) that modified urban environments were more favourable to the establishment of both pathogens, (iii) that Leptospira sp. presence was enhanced during the rainy season and M. ulcerans during the dry period, and (iv) differences in the spatial distribution of both bacteria across urban sites, probably due to the mode of dissemination of each pathogen in the environment. Conclusions We propose that in French Guiana simplified and modified urban ecosystems might favour leptospirosis and Buruli ulcer emergence and transmission. Moreover, disease risk was also constrained by seasonality. We suggest that the prevention of aquatic bacterial disease emergence in impoverished urban areas of developing countries would benefit from seasonal diseases targeted surveys, which would maximise limited budgets from cash-strapped health agencies., Author summary Many emerging pathogens are zoonotic and transmit from their abiotic reservoir to wild animals, domesticated animals and humans. It is now well known that environmental changes lead to variability in their dynamics in the environment and contribute to changes in the infectious risk. Many aquatic bacteria are responsable for major public health concerns, and more importantly in developing countries where access to drinking-water and sanitation is often limited. Whilst their environmental dynamics are directly linked to seasonal changes of their habitat, they also rely on the ecological processes underpining their transmission, i.e. directly transmitted vs. vector-borne. However, few studies have compared such environmental dynamics despite the fact that it would help to better characterise the infectious risk in the environment, as well as to better monitor the emergence of infectious diseases. Our aim was to provide data on the prevalence of generalist vs. vector-borne aquatic bacterial pathogens in the environment that would further allow the comparison of their environmental dynamics in the same unit of time and space, and across rural and urban habitats. We showed that urbanization and seasonality are two important factors underlying Buruli ulcer and leptospirosis disease emergence in French Guiana (South America), and propose that the mode of transmission of such environmental pathogens might have a detrimental role in disseminating the infectious agent in the environment.

Published
2018
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4. Primaquine 30 mg/day versus 15 mg/day during 14 days for the prevention of Plasmodium vivax relapses in adults in French Guiana: a historical comparison

Author

Epelboin, Loïc, Caumes, Eric, Guermonprez, Geraldine, Leturcq, France, Clarke, Peter, Nacher, Mathieu, Adenis, Antoine, Huber, Florence, Hallet, Edouard, Abboud, Philippe, Mosnier, Emilie, Bideau, Bastien, Marty, Christian, Lucarelli, Aude, Morel, Vanessa, Lacapère, François, Couppié, Pierre, Paraskevis, Dimitrios, Valdes, Audrey, Walter, Gaelle, Vesin, Guillaume, Melzani, Alessia, Blanchet, Denis, Blaise, Nicaise, Demar, Magalie Pierre, Djossou, Félix, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Service des maladies infectieuses et tropicales [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Fondation Maison des Champs, Biochimie et Génétique Moléculaire, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Cochin [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH), Centre d'Investigation Clinique Antilles-Guyane (CIC - Antilles Guyane), CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Institut National de la Santé et de la Recherche Médicale (INSERM)-Université des Antilles et de la Guyane (UAG), Croix-rouge française [Cayenne, Guyane Fraçaise], Service de Dermatologie, Unité des Maladies Infectieuses et Tropicales [Cayenne, Guyanne Française], Laboratoire Hospitalo-Universitaire de Parasitologie-Mycologie, Université des Antilles (UA)-Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Département des Centres Délocalisés de Prévention et de Soins [Cayenne, Guyane Française], Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-Université des Antilles (UA), Service de Pharmacie [Cayenne, Guyane Française], Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine [Cayenne, Guyane] (COREVIH), and Centre d'Investigation Clinique Antilles Guyane, Inserm CIC1424

Subjects
Adult, Male, medicine.medical_specialty, lcsh:Arctic medicine. Tropical medicine, Primaquine, lcsh:RC955-962, 030231 tropical medicine, Plasmodium vivax, Context (language use), World health, lcsh:Infectious and parasitic diseases, Antimalarials, Young Adult, 03 medical and health sciences, 0302 clinical medicine, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Internal medicine, parasitic diseases, Epidemiology, Malaria, Vivax, Secondary Prevention, Humans, Medicine, lcsh:RC109-216, 030212 general & internal medicine, Relapse, ComputingMilieux_MISCELLANEOUS, Survival analysis, Dose-Response Relationship, Drug, biology, business.industry, Research, Middle Aged, biology.organism_classification, medicine.disease, Malaria, French Guiana, 3. Good health, Infectious Diseases, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Tropical medicine, Female, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Parasitology, business, medicine.drug
Abstract

International audience; BACKGROUND:The preventive treatment of Plasmodium vivax relapse recommended by the World Health Organization is primaquine at a dose of 15 mg/day for 14 days, except for malaria cases from Asia and Oceania. Since 2006, CDC recommends the use of primaquine at 30 mg/day for 14 days. In France, all cases of malaria due to P. vivax are treated with 30 mg of primaquine. This systematically increased dosage needs to be evaluated according to epidemiological context. The aim of the study was to compare relapses after 14 days of primaquine at 15 or 30 mg/day.METHODS:All patients treated with primaquine after a vivax malaria episode in French Guiana, between 1 January, 2007 and 1 August, 2016, were studied. Based on the compulsory hospital pharmacy forms for primaquine delivery, adult patients who received 15 or 30 mg of primaquine during 14 days for hypnozoite eradication were included. The recommended dose was initially 15 mg and was changed to 30 mg in 2011. Vivax malaria recurrences within 2 months after primaquine treatment, and vivax malaria recurrences 2-6 months after primaquine in each treatment group were analysed using survival analysis at 2, 3 and 6 months.RESULTS:Out of 544 patients included, 283 received 15 mg/day and 261 received 30 mg/day of primaquine. At 2 and 3 months after primaquine treatment, the number of recurrences was 7 (2.5%) and 19 (7.3%), and 9 (3.4%) and 15 (5.3%), in the 15 and 30 mg groups (p = 0.51 respectively 0.35), respectively. Within 3 months, the median time to recurrence was 2.05 months in the 15 and 30 mg groups. At 6 months after primaquine treatment, the number of recurrences was 25 (8.8%) and 31 (11.9%) at 15 and 30 mg, respectively (p = 0.24). The median time to recurrence was 2.38 months at 15 mg/day and of 2.64 months at 30 mg/day.CONCLUSIONS:There were no significant differences between primaquine at 15 or 30 mg/day for 14 days in the prevention of P. vivax relapses at 2, 3 and 6 months after primaquine treatment in French Guiana

Published
2018
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5. Central nervous system histoplasmosis in AIDS: a case series in French Guiana

Author

Epelboin, Loïc, Dione, Aïda, Blanchet, Denis, Nacher, Mathieu, Demar, Magalie Pierre, Couppié, Pierre, Djossou, Félix, Adenis, Antoine, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Université de Guyane (UG), Université Bordeaux Segalen - Bordeaux 2, Laboratoire Hospitalier et Universitaire Parasitologie Mycologie, Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH), Epidémiologie des parasitoses et mycoses tropicales, Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité des Maladies Infectieuses et Tropicales [Cayenne, Guyanne Française], Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], and Matillon, Mirlène

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

6. First established case of Angiostrongylus cantonensis meningomyelitis in French Guiana, 2017

Author

Defo, A, Lachaume, N, Cuadro-Alvarez, Emma, Maniassom, Chimène, Martin, M, Njuieyon, Falucar, Hennaf, F, Mrsic, Yajaira, Brunnelin, A, Epelboin, Loïc, Blanchet, D, Desbois-Nogard, Nicole, Qvarnstrom, Yvonne, Demar, Magalie Pierre, Dard, C, Elenga, Narcisse, Service de Pédiatrie [Cayenne, Guyanne Française], Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Unité des Maladies Infectieuses et Tropicales (UMIT), Université de Guyane (UG), Laboratoire de Parasitologie-Mycologie-Sérologies Bactériennes et Parasitaires [CHU de la Martinique], Centre Hospitalier Universitaire de la Martinique - CHU Martinique, Department of parasitic diseases, Centers for Disease Control, and Latour, Marie

Subjects
[SDV] Life Sciences [q-bio], [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience

Published
2018

7. Cryptosporidiosis Outbreak in Immunocompetent Children from a Remote Area of French Guiana

Author

Mosnier, Emilie, Martin, Noémie, Razakandrainibe, Romy, Dalle, Frédéric, Roux, Guillaume, Buteux, Arnaud, Favennec, Loïc, Brousse, Paul, Guarmit, Basma, Blanchet, Denis, Epelboin, Loïc, Girouin, Camille, Martin, Elise, Djossou, Félix, Nacher, Mathieu, Demar, Magalie Pierre, Centre d'Investigation Clinique Antilles Guyane, Inserm CIC1424, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Département des Centres Délocalisés de Prévention et de Soins [Cayenne, Guyane Française], Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Hôpital Charles Nicolle [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU), Laboratoire de parasitologie mycologie (CHU de Dijon), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Procédés Alimentaires et Microbiologiques [Dijon] (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université Bourgogne Franche-Comté [COMUE] (UBFC), Laboratoire Hospitalo-Universitaire de Parasitologie-Mycologie, Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-Université des Antilles (UA), Département des Centres Délocalisés de Prévention et de Soins, Agence Régionale de la Santé, Cayenne, Guyane française (ARS), Centre d'Investigation Clinique Antilles-Guyane (CIC - Antilles Guyane), Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], and Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine [Cayenne, Guyane] (COREVIH)

Subjects
[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
Abstract

International audience; In September 2014, an increase in the number of Cryptosporidium spp. gastrointestinal tract infections was reported over a 6-month period among children living in a remote area along the Maroni River in French Guiana. Children presented gastroenteritis symptoms with Cryptosporidium-positive stools. Questionnaires were administered and stool examinations were controlled 3 months after the onset of symptoms. Data collection included demographics, food consumption, river behavior, symptoms, and outcome. Stool specimens were tested using microscopy and polymerase chain reaction. Samples from the water systems were examined for turbidity and culture for bacteria. Data from the reference laboratory were analyzed to calculate the median cryptosporidiosis incidence among immunocompetent patients from 2008 to 2015. Data on gastroenteritis cases reported by the Delocalized Center for Prevention and Care in the area were also collected. We report a cluster of 14 cases. All cases were children, aged between 4.5 and 38 months. Seven reported moderate to severe dehydration and required hospitalization. Speciation and microbiological typing revealed the cluster strain was Cryptosporidium hominis subtype IbA10G2 but C. hominis IbA9G2 and IbA15G1 strains were also identified. The median incidence in French Guiana was 5.8 cases per year before the outbreak. The first cases of the cluster appeared in the dry season. We describe the clinical features, epidemiology, and state of current investigations for the largest documented outbreak of cryptosporidiosis in French Guiana.

Published
2018
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8. Angiostrongyliasis due to A. cantonensis: first evidence in French Territories of America& an up-date in all French Overseas Territories

Author

Dard, C., Nguyen, D., Miossec, C., Tessier, E., de Meuron, K., Harrois, D., Mattera, D., Epelboin, Loïc, Demar, Magalie Pierre, Blanchet, Denis, Elenga, N., Defo, A., Nicolas, M., Desprez, P., Rulquin, L., Tournier, S., Aubert, L., Traversier, N., Jaffar Bandjee, M.C., Belmonte, O., Miltgen, G., Collet, L., Blondé, R., Chamouine, Abdourahim, Benoit-Cattin, T., Olivier, C., Giard, M., Guerin, A., Ghawche, F., Darteyre, S., Larre, P., Sookhareea, C., Pasche, J., Oehler, E., Delvallez, G., Gourinat, A.C., Lastère, S., Desbois-Nogard, N., Matillon, Mirlène, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Université de Guyane (UG), Laboratoire Hospitalier et Universitaire Parasitologie Mycologie, and Centre Hospitalier de Mayotte

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

9. Cryptosporidiosis outbreak on children in Amazonia

Author

Mosnier, Emilie, Martin, N, Razakandrainibe, Romy, Dalle, F, Roux, G, Buteux, Arnaud, Favennec, L, Brousse, P, Guarmit, P, Blanchet, D, Epelboin, Loïc, Girouin, C, Martin, E, Djossou, Félix, Nacher, Mathieu, Demar, Magalie Pierre, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Université de Guyane (UG), Hôpital Charles Nicolle [Rouen], Laboratoire Hospitalo-Universitaire de Parasitologie-Mycologie, Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-Université des Antilles (UA), Latour, Marie, and Université des Antilles (UA)-Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]

Subjects
[SDV] Life Sciences [q-bio], [SDV.MHEP] Life Sciences [q-bio]/Human health and pathology, [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience

Published
2018

10. Acute Amazon toxoplasmosis in immunocompetent patients: a descriptive study of 42 cas in French Guiana

Author

Labaudinière, Aude, Demar, Magalie Pierre, Davy, Damien, Epelboin, Loïc, Carod, Jean-François, Brousse, Paul, Mosnier, Emilie, Matillon, Mirlène, Laboratoire Hospitalier et Universitaire Parasitologie Mycologie, Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Laboratoire Ecologie, Evolution, Interactions des Systèmes amazoniens (LEEISA), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS), Unité des Maladies Infectieuses et Tropicales (UMIT), Institut Pasteur de Madagascar, Réseau International des Instituts Pasteur (RIIP), Département des Centres Délocalisés de Prévention et de Soins, and Université de Guyane (UG)

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2018

11. La fièvre Q chronique en Guyane française: une entité méconnue

Author

Sanderink, D, Melenotte, C., Walter, G, Bidaud, B, Jauréguiberry, S., Mahamat, A., Demar, Magalie Pierre, Abboud, P., Djossou, Félix, Epelboin, Loïc, Microbes évolution phylogénie et infections (MEPHI), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Lab-STICC_UBO_CID_SFIIS, Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (Lab-STICC), Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Lebanese Univ, EC2M, Fac Sci 2, Campus Pierre Gemayel, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Université de Guyane (UG), Service des maladies infectieuses et tropicales [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)-École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-Télécom Bretagne-Institut Brestois du Numérique et des Mathématiques (IBNM), Université de Brest (UBO)-Université européenne de Bretagne - European University of Brittany (UEB)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), and Matillon, Mirlène

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

12. Primaquine 30 mg/j vs 15 mg/j pendant 14 j pour la prévention des reviviscences de Plasmodium vivax de l’adulte dans une région d’Amérique : où en sommes-nous ?

Author

Valdes, A, Epelboin, Loïc, Mosnier, E., Walter, G, Vesin, G, Abboud, P., Blanchet, D., Blaise, N, Demar, Magalie Pierre, Djossou, Félix, Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Université de Guyane (UG), Lebanese Univ, EC2M, Fac Sci 2, Campus Pierre Gemayel, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], and Matillon, Mirlène

Subjects
[SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2017

14. Dengue infection in sickle cell patients in French Guiana

Author

Mosnier, Emilie, Demar, Magalie Pierre, Bernit, Emmanuelle, Rousset, Dominique, Epelboin, Loïc, Nacher, Mathieu, Abboud, Philippe, Vantilke, Vincent, Djossou, Félix, Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Département des Centres Délocalisés de Prévention et de Soins, Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Unité des Maladies Infectieuses et Tropicales (UMIT), Département de Médecine Interne (DMI - MARSEILLE), Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Institut Pasteur de la Guyane, Réseau International des Instituts Pasteur (RIIP), Centre d'Investigation Clinique Antilles-Guyane (CIC - Antilles Guyane), Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Centre Hospitalier de l'Ouest Guyanais Franck Joly (Saint-Laurent-du-Maroni), Centre d'Investigation Clinique Antilles Guyane, Inserm CIC1424, and CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Institut National de la Santé et de la Recherche Médicale (INSERM)-Université des Antilles et de la Guyane (UAG)

Subjects
[SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, hemic and lymphatic diseases, MESH: Dengue infection, Sickle cell disease, French Guiana, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie
Abstract

International audience; Reports on dengue morbidity in patients with sickle cell disease (SCD) are scarce. Dengue is arthropod-borne viroses due to dengue virus (DENV) and affects populations with a high prevalence of SCD; therefore, the risk of morbidity may be increased.To determine the impact of dengue infection in SCD patients, we reviewed medical records during a vast outbreak of dengue virus serotype-2 (DENV-2) in French Guiana in 2012-2013. We identified 10 cases of laboratory-confirmed dengue infection;these were classified into A, B and C categories based on levels of severity of dengue according to World Health Organisation (WHO). The average age of SCD patients was 18.2 years. 1, 6 and 3 cases were classified as A, B and C WHO severity criteria, respectively. All patients had an important decrease in haematocrit (while one of the WHO severity criteria is the increase of haematocrit). Only one patient had decreased platelet count. Seven cases had vaso-occlusive crisis (VOC), six patients developed acute hepatitis and eight had a simultaneous bacterial infection. Six of them needed a blood transfusion. The results suggested that the WHO severity laboratory criteria of hemoconcentration and platelet counts were not helpful in themanagement of SCD patients. The morbidity was mainly caused by specific complications of SCD, especially VOC, likely facilitated by vascular endothelial damages consecutive to dengue fever, severe haemolysis, hepatitis and bacterial co-infections.

Published
2015

15. ÉPIDÉMIES MULTIPLES DANS DES CAMPS D'ORPAILLAGE EN FORÊT AMAZONIENNE (GUYANE FRANÇAISE) EN 2013 : QUELLES LEÇONS POUR L'ACCÈS AUX SOINS ET À LA PRÉVENTION ?

Author

Mosnier, Emilie, Carvalho, Luisiane, Mahamat, Aba, Chappert, Jean-Loup, Ledrans, Martine, Ville, Muriel, Renaud, Mireille, Chesneau, Pierre, Rousset, Dominique, Rosine, Jacques, Pommier de Santi, Vincent, Nacher, Mathieu, Demar, Magalie Pierre, Abboud, Philippe, Couppié, Pierre, Djossou, Félix, Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Cellule Inter Régionale d'Epidémiologie des Antilles - Guyane, Institut de Veille Sanitaire (INVS), Département des Centres Délocalisés de Prévention et de Soins, Institut Pasteur de la Guyane, Réseau International des Instituts Pasteur (RIIP), Centre d'épidémiologie et de santé publique des armées, Service de Santé des Armées, Direction Interarmées du Service de Santé en Guyane, Ecosystemes Amazoniens et Pathologie Tropicale (EPat), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Guyane (UG), Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU de la Martinique [Fort de France]-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Service de Dermatologie, Centre Hospitalier Andre Rosemon, Centre d'Investigation Clinique Antilles Guyane, Inserm CIC1424, and Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]

Subjects
Mots-clés : Grippe, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, Guyane française, Orpailleurs, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Shigella, Épidémie, Ankylostomose
Abstract

National audience; Début mars 2013, une épidémie de diarrhée avec syndrome respiratoire aigu fébrile, touchant une communauté d'orpailleurs travaillant sur un même site en forêt tropicale, a été signalée aux autorités sanitaires par le Centre délocalisé de prévention et de soins de Maripasoula (Guyane française). Sur les 34 patients, 12 présentant un tableau clinique sévère ont bénéficié d'une hospitalisation à l'hôpital de Cayenne et ont fait l'objet d'une investigation épidémiologique, clinique et microbiologique. L'enquête épidé-miologique évoquait, à partir des premiers résultats biologiques et éléments descriptifs collectés, la possibilité d'une superposition de deux phénomènes épidémiques. L'enquête microbiologique a permis d'étayer cette hypothèse en mettant en évidence la présence intriquée de grippe saisonnière A/H1N1pdm2009 associée à de nombreuses co-infections parasitaires, bactériennes ou virales, avec notamment 3 cas de Shigella flexneri et 8 cas d'ankylostomoses. Tous les patients ont présenté une évolution favorable, avec guérison rapide après prise en charge adaptée. La présence de ces germes pathogènes et leur association reflètent les conditions de précarité sanitaire et de promiscuité importante existant dans ces camps d'orpaillage. La gravité des tableaux cliniques présentés était principalement due aux co-infections ou à des surinfections. Cette épidémie illustre les besoins et risques sanitaires élevés de cette population et l'intérêt d'un renforcement des mesures d'hygiène et de mesures de prévention ciblées.

Published
2015

16. HIV-Associated Histoplasmosis Early Mortality and Incidence Trends: From Neglect to Priority

Author

Adenis, Antoine, Nacher, Mathieu, Hanf, Matthieu, Vantilcke, Vincent, Boukhari, Rachida, Blanchet, Denis, Demar, Magalie Pierre, Aznar, Christine, Carme, Bernard, Couppié, Pierre, ADENIS, ANTOINE, Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Epidémiologie des parasitoses et mycoses tropicales, Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM), Service de Médecine Interne, Centre Hospitalier de l'Ouest Guyanais, Laboratoire de Biologie Médicale, Centre Hospitalier de l'Ouest Guyanais Franck Joly (Saint-Laurent-du-Maroni), Laboratoire Hospitalo-Universitaire de Parasitologie-Mycologie, Coordination Régionale de la lutte contre le Virus de L'Immunodéficience Humaine (COREVIH)-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française]-Université des Antilles (UA), Unité des Maladies Infectieuses et Tropicales (UMIT), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], and Service de Dermatologie et Vénérologie

Subjects
AIDS, Death, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, HIV, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Histoplasmosis, Histoplasma capsulatum, French Guiana
Abstract

International audience; BACKGROUND: Histoplasmosis is an endemic fungal infection in French Guiana. It is the most common AIDS-defining illness and the leading cause of AIDS-related deaths. Diagnosis is difficult, but in the past 2 decades, it has improved in this French overseas territory which offers an interesting model of Amazonian pathogen ecology. The objectives of the present study were to describe the temporal trends of incidence and mortality indicators for HIV-associated histoplasmosis in French Guiana. METHODS: A retrospective study was conducted to describe early mortality rates observed in persons diagnosed with incident cases of HIV-associated Histoplasma capsulatum var. capsulatum histoplasmosis admitted in one of the three main hospitals in French Guiana between 1992 and 2011. Early mortality was defined by death occurring within 30 days after antifungal treatment initiation. Data were collected on standardized case report forms and analysed using standard statistical methods. RESULTS: There were 124 deaths (45.3%) and 46 early deaths (16.8%) among 274 patients. Three time periods of particular interest were identified: 1992-1997, 1998-2004 and 2005-2011. The two main temporal trends were: the proportion of early deaths among annual incident histoplasmosis cases significantly declined four fold (χ2, p

Published
2014
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17. A complementary tool for management of disseminated Histoplasma capsulatum var. capsulatum infections in AIDS patients: A complementary tool for histoplasmosis management

Author

Iriart, Xavier, Blanchet, Denis, Ménard, Sandie, Lavergne, Rose-Anne, Chauvin, Pamela, Adenis, Antoine, Cassaing, Sophie, Fillaux, Judith, Magnaval, Jean-François, Demar, Magalie Pierre, Carme, Bernard, Bessieres, Marie-Hélène, Couppié, Pierre, Nacher, Mathieu, Berry, Antoine, Aznar, Christine, ADENIS, ANTOINE, Service de Parasitologie et Mycologie [CHU Toulouse], Institut Fédératif de Biologie (IFB), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Pôle Biologie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Centre de Physiopathologie Toulouse Purpan (CPTP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Centre d'investigation clinique Antilles-Guyane (CIC - Antilles Guyane), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de la Martinique [Fort de France]-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Pharmacochimie et Biologie pour le Développement (PHARMA-DEV), Institut de Recherche pour le Développement (IRD)-Institut de Chimie de Toulouse (ICT-FR 2599), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, Epidémiologie des parasitoses et mycoses tropicales, and Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
reactivity, AIDS, cross, histoplasmosis, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, galactomannan, antibody, parasitic diseases, Diagnosis, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, bacterial infections and mycoses, Histoplasma capsulatum, Platelia
Abstract

International audience; In South America, disseminated histoplasmosis due to Histoplasma capsulatum var. capsulatum (H. capsulatum), is a severe and frequent opportunistic infection in AIDS patients. In areas outside the USA where specific-Histoplasma antigen detection is not available, the diagnosis is difficult. With the galactomannan antigen (GM) detection, a test commonly used for invasive aspergillosis diagnosis, there is a cross-reactivity with H. capsulatum that can be helpful for the diagnosis of histoplasmosis. The aim of this study was to evaluate the GM detection for the diagnosis of disseminated histoplasmosis in AIDS patients. The performance of the GM detection was evaluated with serum collected in French Guiana where H. capsulatum is highly endemic. Sera from AIDS patients with disseminated histoplasmosis occurring from 2002 to 2009 and from control HIV-positive patients without histoplasmosis were tested with the GM detection and Histoplasma-specific antibody detection (IEP). In 39 AIDS patients with proven disseminated histoplasmosis, the sensitivity of the Histoplasma IEP was only 35.9% and was linked to the TCD4+ lymphocyte level. For the GM detection, the sensitivity (Se) was 76.9% and specificity (Sp) was 100% with the recommended threshold for aspergillosis diagnosis (0.5). The test was more efficient with a threshold of 0.4 (Se: 0.82 [95% CI: 0.66-0.92], Sp: 1.00 [95% CI: 0.86-1.00], LR+: >10, LR-: 0.18). This study confirms that the GM detection can be a surrogate marker for the diagnosis of disseminated histoplasmosis in AIDS patients in endemic areas where Histoplasma EIA is not available.

Published
2014
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