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Multicentric Analysis of the Species Distribution and Antifungal Susceptibility of Clinical Isolates from Aspergillus Section Circumdati. Antimicrob Agents Chemother 2023; 67:e0146222. [PMID: 36892306 PMCID: PMC10112188 DOI: 10.1128/aac.01462-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 02/05/2023] [Indexed: 03/10/2023] Open
Abstract
The clinical involvement and antifungal susceptibility of Aspergillus section Circumdati are poorly known. We analyzed 52 isolates, including 48 clinical isolates, belonging to 9 species inside the section Circumdati. The whole section exhibited, by the EUCAST reference method, a poor susceptibility to amphotericin B, but species/series-specific patterns were observed for azole drugs. This underlines the interest in getting an accurate identification inside the section Circumdati to guide the choice of antifungal treatment in clinical practice.
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Neonatal outcomes related to maternal SARS-CoV-2 infection in French Guiana: A case-control study. J Infect Public Health 2022; 15:746-751. [PMID: 35714395 PMCID: PMC9190176 DOI: 10.1016/j.jiph.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/26/2022] [Accepted: 06/07/2022] [Indexed: 11/30/2022] Open
Abstract
Background This study aims to assess the neonatal outcomes related to maternal SARS-COV-2 infection. Methods In this study, we identified newborns born between May 14 and August 31, 2020, to mothers who were PCR-SRAS-CoV-2 positive at the time of delivery. From the cohort of 974 infants, we performed a nested case-control study. Results During the study period, 133 (13.7%) mothers were positive for SARS‐CoV‐2. Among the 35 pregnant women with COVID-19 symptoms (26.3%), cough was the most common symptom, present in half of the cases. Four of them have progressed to critical pneumonia requiring transfer to intensive care unit. The neonates from mothers with positive SARS-CoV-2-RT-PCR, were routinely tested for COVID-19 within the first 24 h after labor, and 3 other newborns tested in the presence of symptoms. There was no significant difference between the two groups with respect to preterm birth, meconium-stained amniotic fluid distress, and neonatal asphyxia. Most infants were breastfed at birth, regardless of their mothers' COVID-19 status. In COVID-19-positive pregnant women admitted to intensive care unit, the proportion of preterm births (OR=12.5 [1.7–90.5]), fetal death in utero (OR=25.9 [2.2–305]) and admission in neonatal intensive care unit admission (OR=13.4 [3.0–60]), appeared higher than the controls. No maternal deaths were recorded. Conclusions Our data suggest little neonatal morbidity associated with maternal COVID-19, except for those born to mothers admitted to intensive care unit. However, under breastfeeding conditions with rigorous hygiene precautions and parental education, the risk of transmission of SARS-COV-2 virus to the newborn was very low.
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Intérêt du dosage des β-D-glucane dans le diagnostic de l’histoplasmose disséminée chez le sujet vivant avec le VIH. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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4
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La toxoplasmose amazonienne (TA) est-elle toujours grave ? Étude rétrospective de 2002 à 2019. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Épidémiologie des leishmanioses sur le territoire français de 1998 à 2020. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Record d’incidence de la fièvre Q aiguë en milieu carcéral amazonien français. Infect Dis Now 2021. [DOI: 10.1016/j.idnow.2021.06.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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7
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Unexpected mould diversity in clinical isolates from French Guiana and associated identification difficulties. Med Mycol 2020; 59:myaa091. [PMID: 33111143 DOI: 10.1093/mmy/myaa091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/05/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
New mold species are increasingly reported in invasive fungal infections. However, these fungi are often misdiagnosed or undiagnosed due to the use of inappropriate laboratory diagnostic tools. Tropical countries, such as French Guiana, harbor a vast diversity of environmental fungi representing a potential source of emerging pathogens. To assess the impact of this diversity on the accuracy of mold-infection diagnoses, we identified mold clinical isolates in French Guiana during a five-month follow-up using both microscopy and matrix-assisted laser desorption ionization time-of-flight mass spectrometry. In total, 38.8% of the 98 obtained molds isolates could not be identified and required a DNA-based identification. Fungal diversity was high, including 46 species, 26 genera, and 13 orders. Fungal ecology was unusual, as Aspergillus species accounted for only 27% of all isolates, and the Nigri section was the most abundant out of the six detected Aspergillus sections. Macromycetes (orders Agaricales, Polyporales, and Russulales) and endophytic fungi accounted for respectively 11% and 14% of all isolates. Thus, in tropical areas with high fungal diversity, such as French Guiana, routine mold identification tools are inadequate. Molecular identifications, as well as morphological descriptions, are necessary for the construction of region-specific mass spectrum databases. These advances will improve the diagnosis and clinical management of new fungal infections. LAY SUMMARY In French Guiana, environmental fungal diversity may be a source of emerging pathogens. We evaluated microscopy and mass spectrometry to identify mold clinical isolates. With 39% of unidentified isolates, a region-specific mass spectrum database would improve the diagnosis of new fungal infections.
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Étude comparative rétrospective de l’amphotéricine B liposomale et de l’antimoniate de méglumine dans la leishmaniose cutanée américaine. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Stratégie de dépistage du paludisme par PCR et traitement ciblé en population générale, en zone de transmission, en Guyane. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Infections cutanées à Aeromonas : étude rétrospective sur 11 ans. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Profil épidémiologique des infections à Plasmodium vivax dans une région endémique en Guyane, étude de cohorte, 2007–2018. Med Mal Infect 2020. [DOI: 10.1016/j.medmal.2020.06.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Skin and soft-tissue infections associated with Aeromonas species in French Guiana: an 11-year retrospective study. J Eur Acad Dermatol Venereol 2020; 34:e414-e416. [PMID: 32176375 PMCID: PMC7496744 DOI: 10.1111/jdv.16365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/11/2020] [Accepted: 03/10/2020] [Indexed: 11/29/2022]
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Abstract
We describe the isolation and characterization of Fusarium volatile from a bronchoalveolar lavage (BAL) sample of a female patient living in French Guiana with underlying pulmonary infections. Phylogenetic analysis of fragments of the calmodulin (cmdA), translation elongation factor (tef1), RNA polymerase second largest subunit (rpb2), and β-tubulin (tub) loci revealed that strain CBS 143874 was closely related to isolate NRRL 25615, a known but undescribed phylogenetic species belonging to the African clade of the Fusarium fujikuroi species complex. The fungus differed phylogenetically and morphologically from related known species, and is therefore described as the new taxon Fusarium volatile. Antifungal susceptibility testing suggested that the new species is resistant to echinocandins, fluconazole, itraconazole with lower MICs against amphotericin B, voriconazole and posaconazole.
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American cutaneous leishmaniasis in French Guiana: a retrospective comparison between liposomal amphotericin B and meglumine antimoniate. Br J Dermatol 2020; 183:389-391. [PMID: 32078162 PMCID: PMC7497058 DOI: 10.1111/bjd.18964] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Actinomycetoma caused by Gordonia westfalica: first reported case of human infection. New Microbes New Infect 2020; 34:100658. [PMID: 32194964 PMCID: PMC7078390 DOI: 10.1016/j.nmni.2020.100658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 01/08/2020] [Accepted: 02/10/2020] [Indexed: 11/29/2022] Open
Abstract
Bacteria of the genus Gordonia are rarely involved in human infections. We report here the case of a 30-year-old man from Guinea Buissau with mycetoma of the foot. 16S DNA sequencing after surgical biopsy identified Gordonia westfalica. To our knowledge, this is the first report of human infection caused by G. westfalica.
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Caractéristiques cliniques des leishmanioses à L. naiffi et L .lainsoni en Guyane française. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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A case of disseminated paracoccidioidomycosis associated with cutaneous lobomycosis. J Eur Acad Dermatol Venereol 2019; 34:e18-e20. [PMID: 31407392 DOI: 10.1111/jdv.15863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Incidence élevée de la fièvre Q en Guyane : une étude épidémiologique entre 2009 et 2017. Med Mal Infect 2019. [DOI: 10.1016/j.medmal.2019.04.378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Quatorze cas de diphtérie en territoire Guyane française : une émergence à surveiller. Med Mal Infect 2019. [DOI: 10.1016/j.medmal.2019.04.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Prévalence importante des parasitoses digestives dans une commune amazonienne isolée : une urgence de santé publique. Med Mal Infect 2019. [DOI: 10.1016/j.medmal.2019.04.292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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[First Day Dedicated to the Scientific Works of Young Doctors in French Guiana - Our Residents' Got Talent: Campus Troubiran, université de Guyane, Cayenne, Guyane]. ACTA ACUST UNITED AC 2019; 111:56-67. [PMID: 30763503 DOI: 10.3166/bspe-2018-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 12/12/2017] [Indexed: 11/20/2022]
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22
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Formes cutanéomuqueuses de l’histoplasmose américaine et infection par le VIH en Guyane. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Histoplasma capsulatum causing sinusitis: a case report in French Guiana and review of the literature. BMC Infect Dis 2018; 18:595. [PMID: 30477434 PMCID: PMC6258161 DOI: 10.1186/s12879-018-3499-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 11/01/2018] [Indexed: 11/13/2022] Open
Abstract
Background American histoplasmosis is a mycosis caused by Histoplasma capsulatum. A variety of clinical features of histoplasmosis have been commonly described ranging from asymptomatic infections to severe pulmonary infections. In immunocompromised individuals, progressive disseminated forms are frequent, leading to fatal outcome if untreated. However, H. capsulatum sinusitis is unusual with a few cases documented over the last three decades and may be underdiagnosed or confused with other fungal aetiologies, especially outside endemic regions. Case presentation In this study, we report an atypical case of Histoplasma capsulatum sinus fungus ball-like in a patient with Acquired Immunodeficiency Syndrome due to Human Immunodeficiency Virus complicated by a disseminated histoplasmosis with a death ending. Diagnosis relied on CT-Scan imaging and on both direct examination of H. capsulatum yeast forms (Gomory methenamine Grocott) in the sinus specimen (aspirate, biopsy) and on positivity of the culture further confirmed by qPCR. Conclusions Since last few decades, among the eight reviewed patients, H. capsulatum sinusitis occurred mostly in HIV-immunocompromised patients and for three cases as a sinusitis with disseminated histoplasmosis. Even if this is a rare clinical presentation, its diagnosis is crucial as it could represent an early expression of an Histoplasma capsulatum exposure that can evolve into a disseminated fatal infection when immunity decreases.
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Predictors of antimalarial self-medication in illegal gold miners in French Guiana: a pathway towards artemisinin resistance. J Antimicrob Chemother 2018; 73:231-239. [PMID: 29045645 DOI: 10.1093/jac/dkx343] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 08/23/2017] [Indexed: 11/15/2022] Open
Abstract
Background Malaria is endemic in French Guiana (FG), South America. Despite the decrease in cases in the local population, illegal gold miners are very affected by malaria (22.3% of them carried Plasmodium spp.). Self-medication seems to be very common, but its modalities and associated factors have not been studied. The aim of this study was to evaluate parasite susceptibility to drugs and to document behaviours that could contribute to resistance selection in illegal gold miners. Methods This multicentric cross-sectional study was conducted in resting sites along the FG-Surinamese border. Participating gold miners working in FG completed a questionnaire and provided a blood sample. Results From January to June 2015, 421 illegal gold miners were included. Most were Brazilian (93.8%) and 70.5% were male. During the most recent malaria attack, 45.5% reported having been tested for malaria and 52.4% self-medicated, mainly with artemisinin derivatives (90%). Being in FG during the last malaria attack was the main factor associated with self-medication (adjusted OR = 22.1). This suggests that access to malaria diagnosis in FG is particularly difficult for Brazilian illegal gold miners. Treatment adherence was better for persons who reported being tested. None of the 32 samples with Plasmodium falciparum presented any mutation on the pfK13 gene, but one isolate showed a resistance profile to artemisinin derivatives in vitro. Conclusions The risk factors for the selection of resistance are well known and this study showed that they are present in FG with persons who self-medicated with poor adherence. Interventions should be implemented among this specific population to avoid the emergence of artemisinin resistance.
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Épidémie de toxoplasmose amazonienne dans une commune amérindienne. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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26
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Leptospirose versus dengue : et si la CRP suffisait pour guider l’antibiothérapie devant une fièvre au retour ou en zone d’endémie ? Une étude cas-témoin appariée. Med Mal Infect 2018. [DOI: 10.1016/j.medmal.2018.04.058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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27
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Formes graves de paludisme à Plasmodium vivax : caractéristiques sociologiques, cliniques et biologiques associées à l’anémie profonde. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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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 ? Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Efficacité thérapeutique de la chloroquine dans le traitement des accès palustres simples à Plasmodium vivax en Guyane. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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La fièvre Q chronique en Amérique latine : une entité méconnue. Étude transversale en Guyane. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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31
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Cryptococcose disséminée : explorations immunitaires chez 6 patients non infectés par le VIH. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Cas de leishmanioses cutanées à L. lainsoni en Guyane française, de 2003 à 2013. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Leishmaniose cutanée multilésionnelle en Guyane française : étude comparative. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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TROP-10 - Facteurs pronostiques de la leptospirose en Guyane. Med Mal Infect 2016. [DOI: 10.1016/s0399-077x(16)30518-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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BMR-04 - Facteurs de risque d’infections urinaires à entérobactéries BLSE dans un service d’urgences en région Amazonienne. Med Mal Infect 2016. [DOI: 10.1016/s0399-077x(16)30313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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La lobomycose en Guyane française : à propos de 20 observations. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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37
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Leishmanioses cutanéo-muqueuses en Guyane : prédominance de l’espèce Leishmania guyanensis. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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38
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[Paracoccidioidomycosis of the external ear]. Ann Dermatol Venereol 2014; 141:514-7. [PMID: 25209814 DOI: 10.1016/j.annder.2014.04.121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 03/05/2014] [Accepted: 04/02/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND Paracoccidioidomycosis is a systemic fungal infection common in Latin America. Cutaneous involvement is frequent and usually affects multiple sites, being most frequently associated with lesions of the oropharyngeal mucosa. The cutaneous form on its own is rare. PATIENTS AND METHODS We report a case of paracoccidioidomycosis isolated from the ear of a 43-year-old immunocompetent man. The lesion consisted of a partially ulcerated plaque on the auricle of the left ear. Direct examination, histopathological examination and PCR revealed the presence in the skin lesion of yeasts identified as Paracoccidioides brasiliensis. DISCUSSION The sites of paracoccidioidomycosis on the ear can be confused with other tropical diseases frequently found in the Amazon region such as leishmaniasis, leprosy and lobomycosis. The absence of any other cutaneous sites in this case raised the question of whether the lesion was of primary or secondary origin.
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E-06: Facteurs climatiques et incidence de la fièvre Q aiguë. Med Mal Infect 2014. [DOI: 10.1016/s0399-077x(14)70146-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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40
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SFN CO-03 - Evaluation de la prise en charge des infections aiguës à Toxoplasma gondii en cours de grossesse au CH Cayenne. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)71865-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Toxoplasmose amazonienne : première observation décrite avec manifestations cutanéomuqueuses. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Acute toxoplasmoses in immunocompetent patients hospitalized in an intensive care unit in French Guiana. Clin Microbiol Infect 2011; 18:E221-31. [PMID: 21958195 DOI: 10.1111/j.1469-0691.2011.03648.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Atypical Toxoplasma gondii strains, unrelated to archetypal clonal lineages (I, II, III), have been reported more frequently over the last decade in areas other than Europe and North America. A newly described form of toxoplasmosis, 'Amazonian toxoplasmosis' (AT), has been reported since 2002 in French Guiana. It is characterized by severe cases and atypical strains linked to a neotropical forest-based cycle. We report on the cases of AT that required intensive care management. We performed a prospective observational study on hospitalized adults in the Intensive Care Unit (ICU) from 2002 to 2008. Clinical and laboratory data, microbiological findings and outcomes were recorded. Data, including the ICU simplified acute physiology score and the pneumonia severity index, were calculated. Epidemiological risk factors for AT were assessed through questionnaires. Eleven non-immunodeficient patients were admitted to the ICU in Cayenne for life-threatening pneumonia associated with disseminated toxoplasmosis. Mechanical ventilation was necessary in seven patients, four of whom required immediate orotracheal intubation. Cardiac and ophthalmological abnormalities were found in five and four patients, respectively. One patient died from multiple organ failure. The genetic characterization of Toxoplasma DNA using six microsatellite markers revealed unique and atypical genotypes in eight patients. All patients presented epidemiological risk factors for AT. In French Guiana, significant T. gondii-related infectious syndrome associated with the lungs, a high level of LDH activity and the reported risk factors for AT was strongly suggestive of disseminated toxoplasmosis with a possible trend toward life-threatening pneumonia.
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V-03 Toxoplasmose très sévère en service de reanimation medico-chirurgicale du Centre Hospitalier de Cayenne. Med Mal Infect 2009. [DOI: 10.1016/s0399-077x(09)74319-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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S-07 Prévalence de l’hépatite B chez les femmes enceintes au centre hospitalier de Cayenne en Guyane française. Med Mal Infect 2009. [DOI: 10.1016/s0399-077x(09)74514-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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B-04 Histoplasmose chez les patients infectés par le VIH : 25 années d’expérience en Guyane française. Med Mal Infect 2008. [DOI: 10.1016/s0399-077x(08)73079-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Atypical Toxoplasma gondii Strain from a Free-living Jaguar (Panthera onca) in French Guiana. Am J Trop Med Hyg 2008. [DOI: 10.4269/ajtmh.2008.78.195] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Atypical Toxoplasma gondii strain from a free-living jaguar (Panthera onca) in French Guiana. Am J Trop Med Hyg 2008; 78:195-197. [PMID: 18256411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
Like domestic cats, wild felids are involved in the complete infective cycle of Toxoplasma gondii because they can host in their gastrointestinal tract sexually mature parasites and shed infective oocysts in their feces. We report, to our knowledge, the first isolation and molecular characterization of a T. gondii strain from the heart tissue of a free-living jaguar (Panthera onca) in French Guiana. Sequencing at six polymorphic markers indicated that the jaguar isolate had an atypical genotype, including an allele at TgM-A previously found only in isolates from South America, and an allele at GRA6, which was previously reported only in Californian sea otter isolates. These findings are consistent with the recent description of atypical T. gondii strains involved in severe toxoplasmoses in immunocompetent patients in French Guiana that seemed to be linked to a neotropical forest-based cycle involving wild cats and their prey.
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Abstract
INTRODUCTION Histoplasma capsulatum var capsulatum is a dimorphic fungi predominating on the American continent. It is responsible for disseminated histoplasmosis associated with AIDS. The presentation in the form of cutaneous ulceration is uncommon and misleading. OBSERVATION A 25 year-old man presented with 3 ulcerations, of 2 to 4 cm in diameter, localized on the lower lip and knees. The patient exhibited fever, alteration in his general status of health and a pulmonary interstitial syndrome. He was seropositive for the human immunodeficiency syndrome (HIV). His lymphocyte CD4+ level was of 1/mm3. Diagnosis of histoplasmosis was established by direct examination and culture of the cutaneous ulcerations and bronchoalveolar washing fluid. DISCUSSION The clinical aspect of cutaneous localizations of disseminated histoplasmosis is usually multiple, disseminated, papular or nodular-type lesions. Ulcerations represent less than 20% of the cases described. In our patient, the aspect of the lesions at first evoked cutaneous leishmaniosis. Direct mycological examination followed by culture confirmed the final diagnosis.
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Abstract
INTRODUCTION Paracoccidio-domycosisis a deep mycosis due to a dimorphic fungus:Paracoccidioides brasiliensis. The principle endemic country is Brazil. We describe the first case of paracoccidio-domycosis, in its cutaneous-mucosal form, diagnosed in French Guiana. OBSERVATION A 20 year-old Brazilian man, having mover to French Guiana a few months earlier, presented with multiple disseminated cutaneous lesions, predominating on the face, and composed of multiple nodules and two ulcerations. The clinical examination also revealed voluminous superficial lymph nodes and ulcerations of the pharynx and larynx. Direct examination, anatomopathology and culture of cutaneous biopsies revealed specific images of Paracoccidioides brasiliensis. HIV serology was negative. Treatment combining cotrimoxazole and itraconazole eliminated the lesions in one month. DISCUSSION Because the patient had just moved to Guiana, this observation probably corresponded to an imported disease. The principle differential diagnosis was leishmaniosis.
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Genetic diversity, clonality and sexuality in Toxoplasma gondii. Int J Parasitol 2004; 34:1185-96. [PMID: 15380690 DOI: 10.1016/j.ijpara.2004.06.007] [Citation(s) in RCA: 240] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2004] [Revised: 06/28/2004] [Accepted: 06/28/2004] [Indexed: 11/15/2022]
Abstract
The majority of Toxoplasma gondii strains from a variety of human and animal sources have been grouped into three highly clonal but closely related lineages. The low occurrence of nucleotide differences among the three predominant lineages and their unusual dimorphic allelic composition suggest that they have arisen from a recent common ancestry. Less than 1% of the previously studied strains contain unique genotypes and high divergence of DNA sequence, and therefore are considered 'exotic' or 'atypical' strains. The seemingly low genetic diversity in T. gondii may have been underestimated because most parasite strains in previous studies were collected from human patients and domestic animals in North America and Europe. To investigate the genetic diversity of T. gondii, we analysed parasite strains isolated from remote geographical regions by multilocus microsatellite sequencing and phylogenetic analysis. The genetic diversity indices, the molecular analysis of microsatellite genotypes and the constructed phylogram considered together suggest that the global T. gondii population is highly diversified and not characteristic of a clonal organism. The most parsimonious hypothesis is that T. gondii presents a complex population structure with a mix of clonal and sexual propagation as a function of the environmental conditions. The comparison between domestic strains data on one hand and wild strains data on the other hand is in favour of more frequent sexual recombinations in wild environment even though Toxoplasma subpopulation in human and domestic animals is largely clonal.
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