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Ingrao F, Ngabirano E, Rauw F, Dauphin G, Lambrecht B. Immunogenicity and protective efficacy of a multivalent herpesvirus vectored vaccine against H9N2 low pathogenic avian influenza in chicken. Vaccine 2024:S0264-410X(24)00452-3. [PMID: 38641498 DOI: 10.1016/j.vaccine.2024.04.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/15/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
The application of recombinant herpesvirus of turkey, expressing the H9 hemagglutinin gene from low pathogenic avian influenza virus (LPAIV) H9N2 and the avian orthoavulavirus-1 (AOAV-1) (commonly known as Newcastle Disease virus (NDV)) fusion protein (F) as an rHVT-H9-F vaccine, is an alternative to currently used classical vaccines. This study investigated H9- and ND-specific humoral and mucosal responses, H9-specific cell-mediated immunity, and protection conferred by the rHVT-H9-F vaccine in specific pathogen-free (SPF) chickens. Vaccination elicited systemic NDV F- and AIV H9-specific antibody response but also local antibodies in eye wash fluid and oropharyngeal swabs. The ex vivo H9-specific stimulation of splenic and pulmonary T cells in the vaccinated group demonstrated the ability of vaccination to induce systemic and local cellular responses. The clinical protection against a challenge using a LPAIV H9N2 strain of the G1 lineage isolated in Morocco in 2016 was associated with a shorter duration of shedding along with reduced viral genome load in the upper respiratory tract and reduced cloacal shedding compared to unvaccinated controls.
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Affiliation(s)
- Fiona Ingrao
- Service of Avian Virology and Immunology, Sciensano, 1180 Brussels, Belgium.
| | - Eva Ngabirano
- Service of Avian Virology and Immunology, Sciensano, 1180 Brussels, Belgium
| | - Fabienne Rauw
- Service of Avian Virology and Immunology, Sciensano, 1180 Brussels, Belgium
| | - Gwenaëlle Dauphin
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
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Garcia-Llorens J, Garcia C, Paulet P, Le-Tallec B, Dauphin G, Comte S, Catalá-Gregori P, Simon F, Sevilla-Navarro S, Sarabia J. Research Note: Validation of a new differentiation approach using the commercial ASAP TM media to detect the Salmonella 441/014 vaccine strain. Poult Sci 2024; 103:103679. [PMID: 38701627 DOI: 10.1016/j.psj.2024.103679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 03/14/2024] [Accepted: 03/16/2024] [Indexed: 05/05/2024] Open
Abstract
Vaccination is one of the most important control tools to reduce Salmonella in poultry production. In order for a live vaccine to be licensed for field use it should be provided with the detection methods to differentiate it from field strains. This paper aims to describe the validation of an alternative method for the differentiation of the Salmonella 441/014 vaccine strain from field strains, using a chromogenic Media, ASAP from bioMérieux. The ASAP-based differentiation method was compared with already authorized methods, namely the Anicon SE Kylt PCR DIVA 1 assay and Ceva S-Check Salmonella differentiation kit, following the ISO 16140-6:2019 validation method guidelines. A Generalised Linear Model was fitted to the data to determine the inclusivity and exclusivity of differentiation methods (PCR Kylt vs. S-Check vs. ASAPTM). Statistical differences were based on a P-value level of < 0.05 (SPSS Inc., Chicago, IL). In this study, we show that the ASAP media was able to differentiate Salmonella Enteritidis vaccine strains from field strains, obtaining 100% agreement between the three differentiation assays. This differentiation approach is quicker, easier to deploy and cheaper as compared to alternative methods.
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Affiliation(s)
- J Garcia-Llorens
- Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), 12539, Alquerías del Niño Perdido, Castellón, Spain
| | - C Garcia
- Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), 12539, Alquerías del Niño Perdido, Castellón, Spain
| | - P Paulet
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
| | - B Le-Tallec
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
| | - G Dauphin
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
| | - S Comte
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
| | - P Catalá-Gregori
- Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), 12539, Alquerías del Niño Perdido, Castellón, Spain
| | - F Simon
- bioMérieux, Marcy l'Etoile, 69280, France
| | - S Sevilla-Navarro
- Centro de Calidad Avícola y Alimentación Animal de la Comunidad Valenciana (CECAV), 12539, Alquerías del Niño Perdido, Castellón, Spain.
| | - J Sarabia
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
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Keck N, Treilles M, Gordoncillo M, Ivette OLI, Dauphin G, Dorado-Garcia A, Eckford S, Kabali E, Gourlaouen M, Latronico F, Lubroth J, Sumption K, Song J, Mouillé B. A systematic approach toward progressive improvement of national antimicrobial resistance surveillance systems in food and agriculture sectors. Front Vet Sci 2023; 9:1057040. [PMID: 36825205 PMCID: PMC9941986 DOI: 10.3389/fvets.2022.1057040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/21/2022] [Indexed: 02/09/2023] Open
Abstract
The first Food and Agriculture Organization of the United Nations (FAO) Action Plan on antimicrobial resistance (AMR), published in 2016, identified the need to develop capacity for AMR surveillance and monitoring in food and agriculture sectors. As part of this effort, FAO has developed the "Assessment Tool for Laboratories and AMR Surveillance Systems" (FAO-ATLASS) to assist countries in systematically assessing their AMR surveillance system in food and agriculture. FAO-ATLASS includes two different modules for surveillance and laboratory assessment. Each module includes two questionnaires that collect either qualitative or semi-quantitative data to describe and score the performance of national AMR surveillance system data production network, data collection and analysis, governance, communication and overall sustainability in a standardized manner. Based on information captured in the questionnaire by trained assessors (1) tables and figures describing the outputs of the surveillance system are automatically generated (2) a Progressive Improvement Pathway (PIP) stage, ranging from "1-limited" to "5-sustainable", is assigned to each laboratory assessed in the country, each area of the surveillance system and also to the overarching national AMR surveillance system. FAO-ATLASS allows national authorities to implement a strategic stepwise approach to improving their AMR surveillance systems via the FAO-ATLASS PIP system and provides an evidence base for actions and advocacy. The implementation of FAO-ATLASS at regional and global levels can contribute to harmonize and better coordinate strategies aimed at implementing an integrated AMR surveillance system under the One Health approach.
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Affiliation(s)
- Nicolas Keck
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Michaël Treilles
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Mary Gordoncillo
- Emergency Centre for Transboundary Animal Diseases (ECTAD), Regional Office for Asia and the Pacific, Food and Agriculture Organization of the United Nations (FAO), Bangkok, Thailand
| | - Ouoba Labia Irène Ivette
- Regional Office for Sub-Saharan Africa, Food and Agriculture Organization of the United Nations (FAO), Accra, Ghana
| | - Gwenaëlle Dauphin
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | | | - Suzanne Eckford
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Emmanuel Kabali
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Morgane Gourlaouen
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Francesca Latronico
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Juan Lubroth
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Keith Sumption
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Junxia Song
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy
| | - Béatrice Mouillé
- Food and Agriculture Organization of the United Nations (FAO) Headquarters, Rome, Italy,*Correspondence: Béatrice Mouillé ✉
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Niqueux É, Flodrops M, Allée C, Lebras MO, Pierre I, Louboutin K, Guillemoto C, Le Prioux A, Le Bouquin-Leneveu S, Keïta A, Amelot M, Martenot C, Massin P, Cherbonnel-Pansart M, Briand FX, Schmitz A, Cazaban C, Dauphin G, Delquigny T, Lemière S, Watier JM, Mogler M, Tarpey I, Grasland B, Eterradossi N. Evaluation of three hemagglutinin-based vaccines for the experimental control of a panzootic clade 2.3.4.4b A(H5N8) high pathogenicity avian influenza virus in mule ducks. Vaccine 2023; 41:145-158. [PMID: 36411134 DOI: 10.1016/j.vaccine.2022.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/17/2022] [Accepted: 11/06/2022] [Indexed: 11/19/2022]
Abstract
In France during winter 2016-2017, 487 outbreaks of clade 2.3.4.4b H5N8 subtype high pathogenicity (HP) avian influenza A virus (AIV) infections were detected in poultry and captive birds. During this epizootic, HPAIV A/decoy duck/France/161105a/2016 (H5N8) was isolated and characterized in an experimental infection transmission model in conventional mule ducks. To investigate options to possibly protect such ducks against this HPAIV, three vaccines were evaluated in controlled conditions. The first experimental vaccine was derived from the hemagglutinin gene of another clade 2.3.4.4b A(H5N8) HPAIV. It was injected at three weeks of age, either alone (Vac1) or after a primer injection at day-old (Vac1 + boost). The second vaccine (Vac2) was a commercial bivalent adjuvanted vaccine containing an expressed hemagglutinin modified from a clade 2.3.2 A(H5N1) HPAIV. Vac2 was administered as a single injection at two weeks of age. The third experimental vaccine (Vac3) also incorporated a homologous 2.3.4.4b H5 HA gene and was administered as a single injection at three weeks of age. Ducks were challenged with HPAIV A/decoy duck/France/161105a/2016 (H5N8) at six weeks of age. Post-challenge virus excretion was monitored in vaccinated and control birds every 2-3 days for two weeks using real-time reverse-transcription polymerase chain reaction and serological analyses (haemagglutination inhibition test against H5N8, H5 ELISA and AIV ELISA) were performed. Vac1 abolished oropharyngeal and cloacal shedding to almost undetectable levels, whereas Vac3 abolished cloacal shedding only (while partially reducing respiratory shedding) and Vac2 only partly reduced the respiratory and intestinal excretion of the challenge virus. These results provided relevant insights in the immunogenicity of recombinant H5 vaccines in mule ducks, a rarely investigated hybrid between Pekin and Muscovy duck species that has played a critical role in the recent H5 HPAI epizootics in France.
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Affiliation(s)
- Éric Niqueux
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Marion Flodrops
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Chantal Allée
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Marie-Odile Lebras
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Isabelle Pierre
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Katell Louboutin
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Carole Guillemoto
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Aurélie Le Prioux
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Sophie Le Bouquin-Leneveu
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Epidemiology Health and Welfare Unit, BP53, 22440 Ploufragan, France
| | - Alassane Keïta
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian Experimentation and Breeding Service, BP53, 22440 Ploufragan, France
| | - Michel Amelot
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian Experimentation and Breeding Service, BP53, 22440 Ploufragan, France
| | - Claire Martenot
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Pascale Massin
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Martine Cherbonnel-Pansart
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - François-Xavier Briand
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | - Audrey Schmitz
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
| | | | - Gwenaëlle Dauphin
- Ceva Santé Animale, 10 Avenue de la Ballastière, 33500 Libourne, France
| | - Thomas Delquigny
- Boehringer Ingelheim Animal Health, 29 avenue Tony Garnier, 69007 Lyon, France
| | - Stéphane Lemière
- Boehringer Ingelheim Animal Health, 29 avenue Tony Garnier, 69007 Lyon, France
| | - Jean-Marie Watier
- MSD Santé Animale, 7 rue Olivier de Serres, BP 17144, 49071 Beaucouzé Cedex, France
| | - Mark Mogler
- Merck Animal Health, Ames, IA 50010, United States of America
| | - Ian Tarpey
- MSD Animal Health, Walton Manor, Milton Keynes MK7 7AJ, United Kingdom
| | - Béatrice Grasland
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France.
| | - Nicolas Eterradossi
- Anses (French Agency for Food, Environmental and Occupational Health & Safety), Ploufragan-Plouzané-Niort Laboratory, Avian and Rabbit Virology Immunology and Parasitology Unit, National Reference Laboratory for Avian Influenza, BP53, 22440 Ploufragan, France
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Voupawoe G, Varkpeh R, Kamara V, Sieh S, Traoré A, De Battisti C, Angot A, Loureiro LFLDJ, Soumaré B, Dauphin G, Abebe W, Coetzer A, Scott T, Nel L, Blanton J, Dacheux L, Bonas S, Bourhy H, Gourlaouen M, Leopardi S, De Benedictis P, Léchenne M, Zinsstag J, Mauti S. Rabies control in Liberia: Joint efforts towards zero by 30. Acta Trop 2021; 216:105787. [PMID: 33385361 DOI: 10.1016/j.actatropica.2020.105787] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 01/24/2023]
Abstract
Despite declaration as a national priority disease, dog rabies remains endemic in Liberia, with surveillance systems and disease control activities still developing. The objective of these initial efforts was to establish animal rabies diagnostics, foster collaboration between all rabies control stakeholders, and develop a short-term action plan with estimated costs for rabies control and elimination in Liberia. Four rabies diagnostic tests, the direct fluorescent antibody (DFA) test, the direct immunohistochemical test (dRIT), the reverse transcriptase polymerase chain reaction (RT-PCR) assay and the rapid immunochromatographic diagnostic test (RIDT), were implemented at the Central Veterinary Laboratory (CVL) in Monrovia between July 2017 and February 2018. Seven samples (n=7) out of eight suspected animals were confirmed positive for rabies lyssavirus, and molecular analyses revealed that all isolates belonged to the Africa 2 lineage, subgroup H. During a comprehensive in-country One Health rabies stakeholder meeting in 2018, a practical workplan, a short-term action plan and an accurately costed mass dog vaccination strategy were developed. Liberia is currently at stage 1.5/5 of the Stepwise Approach towards Rabies Elimination (SARE) tool, which corresponds with countries that are scaling up local-level interventions (e.g. dog vaccination campaigns) to the national level. Overall an estimated 5.3 - 8 million USD invested over 13 years is needed to eliminate rabies in Liberia by 2030. Liberia still has a long road to become free from dog-rabies. However, the dialogue between all relevant stakeholders took place, and disease surveillance considerably improved through implementing rabies diagnosis at the CVL. The joint efforts of diverse national and international stakeholders laid important foundations to achieve the goal of zero dog-mediated human rabies deaths by 2030.
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Hautefeuille C, Azzouguen B, Mouchel S, Dauphin G, Peyre M. Evaluation of vaccination strategies to control an avian influenza outbreak in French poultry production networks using EVACS tool. Prev Vet Med 2020; 184:105129. [PMID: 33002655 DOI: 10.1016/j.prevetmed.2020.105129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 07/31/2020] [Accepted: 08/23/2020] [Indexed: 11/27/2022]
Abstract
France recently faced two epizootic waves of highly pathogenic avian influenza (HPAI) in poultry (H5N6 in 2015-2016 and H5N8 in 2016-2017), mainly in the fattening duck production sector. Vaccination against avian influenza (AI) is currently not authorised in France even though its potential benefits were discussed during these epizootic events. The objective of this work was to evaluate the potential efficiency of different vaccination strategies that could be applied against AI in France. The EVACS tool, which is a decision support tool developed to evaluate vaccination strategies, was applied in several French poultry production sectors: broiler, layer, turkey, duck and guinea fowl. EVACS was used to simulate the performance of vaccination strategies in terms of vaccination coverage, immunity levels and spatial distribution of the immunity level. A cost-benefit analysis was then applied based on EVACS results to identify the most efficient strategy. For each sector, vaccination protocols were tested according to the production type (breeders/production, indoor/outdoor), the integration level (integrated/independent) and the type of vaccine (hatchery vaccination using a recombinant vaccine/farm vaccination using an inactivated vaccine). The most efficient protocols for each sector were then combined to test different overall vaccination strategies at the national level. Even if it was not possible to compare vaccination protocols with the two vaccines types in "foie gras" duck, meat duck and guinea fowl production sectors as no hatchery vaccine currently exist for these species, these production sectors were also described and included in this simulation. Both types of vaccination (at hatchery and farm level) enabled protective immunity levels for the control of AI, but higher poultry population immunity level was reached (including independent farms) using hatchery vaccination. We also showed that hatchery vaccination was more efficient (higher benefit-cost ratio) than farm vaccination. Sufficient and homogeneously spatially distributed protective levels were reached in the overall poultry population with vaccination strategies targeting breeders, chicken layers and broilers and turkeys, without the need to include ducks and guinea fowls. However, vaccination strategies involving the highest number of species and production types were the most efficient in terms of cost-benefit. This study provides critical information on the efficiency of different vaccination strategies to support future decision making in case vaccination was applied to prevent and control HPAI in France.
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Affiliation(s)
- Claire Hautefeuille
- CIRAD, UMR ASTRE, F-34398, Montpellier, France; ASTRE, Univ Montpellier, CIRAD, INRAE, Montpellier, France; CEVA Santé animale, 33500, Libourne, France.
| | - Billal Azzouguen
- CIRAD, UMR ASTRE, F-34398, Montpellier, France; ASTRE, Univ Montpellier, CIRAD, INRAE, Montpellier, France
| | | | | | - Marisa Peyre
- CIRAD, UMR ASTRE, F-34398, Montpellier, France; ASTRE, Univ Montpellier, CIRAD, INRAE, Montpellier, France
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Peyre M, Choisy M, Sobhy H, Kilany WH, Gély M, Tripodi A, Dauphin G, Saad M, Roger F, Lubroth J, Jobre Y. Added Value of Avian Influenza (H5) Day-Old Chick Vaccination for Disease Control in Egypt. Avian Dis 2017; 60:245-52. [PMID: 27309063 DOI: 10.1637/11131-050715-resnote] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The immunity profile against H5N1 highly pathogenic avian influenza (HPAI) in the commercial poultry value chain network in Egypt was modeled with the use of different vaccination scenarios. The model estimated the vaccination coverage, the protective seroconversion level, and the duration of immunity for each node of the network and vaccination scenario. Partial budget analysis was used to compare the benefit-cost of the different vaccination scenarios. The model predicted that targeting day-old chick avian influenza (AI) vaccination in industrial and large hatcheries would increase immunity levels in the overall poultry population in Egypt and especially in small commercial poultry farms (from <30% to >60%). This strategy was shown to be more efficient than the current strategy of using inactivated vaccines. Improving HPAI control in the commercial poultry sector in Egypt would have a positive impact to improve disease control.
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Affiliation(s)
- Marisa Peyre
- A UPR AGRIS, Centre International de Recherche en Agriculture pour le Développement, 34398, Montpellier, France
| | - Marc Choisy
- B UMR MIVEGEC, 34394, Montpellier, France; Oxford University Clinical Research Unit (OUCRU), Hanoi, Vietnam
| | - Heba Sobhy
- C Food and Agriculture Organization of the United Nations, P.O. Box 2223, Cairo, Egypt
| | - Walid H Kilany
- C Food and Agriculture Organization of the United Nations, P.O. Box 2223, Cairo, Egypt.,D Reference Laboratory for Veterinary Quality on Poultry Production, 12618, Cairo, Egypt
| | - Marie Gély
- A UPR AGRIS, Centre International de Recherche en Agriculture pour le Développement, 34398, Montpellier, France
| | - Astrid Tripodi
- E Food and Agriculture Organization of the United Nations, 00153, Rome, Italy
| | - Gwenaëlle Dauphin
- E Food and Agriculture Organization of the United Nations, 00153, Rome, Italy
| | - Mona Saad
- F General Organization for Veterinary Services, 12618, Cairo, Egypt
| | - François Roger
- A UPR AGRIS, Centre International de Recherche en Agriculture pour le Développement, 34398, Montpellier, France
| | - Juan Lubroth
- E Food and Agriculture Organization of the United Nations, 00153, Rome, Italy
| | - Yilma Jobre
- C Food and Agriculture Organization of the United Nations, P.O. Box 2223, Cairo, Egypt
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Rabaste F, Guyot J, Dauphin G, Jeminet G, Delort AM. Monensin-induced modifications of ionic gradients on Streptococcus faecalis. A 23Na and 31P NMR study. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jcp/1992890217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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9
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Dhingra MS, Artois J, Robinson TP, Linard C, Chaiban C, Xenarios I, Engler R, Liechti R, Kuznetsov D, Xiao X, Dobschuetz SV, Claes F, Newman SH, Dauphin G, Gilbert M. Global mapping of highly pathogenic avian influenza H5N1 and H5Nx clade 2.3.4.4 viruses with spatial cross-validation. eLife 2016; 5. [PMID: 27885988 PMCID: PMC5161450 DOI: 10.7554/elife.19571] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 11/14/2016] [Indexed: 01/09/2023] Open
Abstract
Global disease suitability models are essential tools to inform surveillance systems and enable early detection. We present the first global suitability model of highly pathogenic avian influenza (HPAI) H5N1 and demonstrate that reliable predictions can be obtained at global scale. Best predictions are obtained using spatial predictor variables describing host distributions, rather than land use or eco-climatic spatial predictor variables, with a strong association with domestic duck and extensively raised chicken densities. Our results also support a more systematic use of spatial cross-validation in large-scale disease suitability modelling compared to standard random cross-validation that can lead to unreliable measure of extrapolation accuracy. A global suitability model of the H5 clade 2.3.4.4 viruses, a group of viruses that recently spread extensively in Asia and the US, shows in comparison a lower spatial extrapolation capacity than the HPAI H5N1 models, with a stronger association with intensively raised chicken densities and anthropogenic factors.
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Affiliation(s)
- Madhur S Dhingra
- Spatial Epidemiology Lab, Université Libre de Bruxelles, Brussels, Belgium.,Department of Animal Husbandry and Dairying, Government of Haryana, Panchkula, India
| | - Jean Artois
- Spatial Epidemiology Lab, Université Libre de Bruxelles, Brussels, Belgium
| | - Timothy P Robinson
- Livestock Systems and Environment, International Livestock Research Institute, Nairobi, Kenya
| | - Catherine Linard
- Spatial Epidemiology Lab, Université Libre de Bruxelles, Brussels, Belgium.,Department of Geography, Université de Namur, Namur, Belgium
| | - Celia Chaiban
- Spatial Epidemiology Lab, Université Libre de Bruxelles, Brussels, Belgium
| | - Ioannis Xenarios
- Swiss-Prot and Vital-IT group, Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
| | - Robin Engler
- Swiss-Prot and Vital-IT group, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Robin Liechti
- Swiss-Prot and Vital-IT group, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Dmitri Kuznetsov
- Swiss-Prot and Vital-IT group, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Xiangming Xiao
- Department of Microbiology and Plant Biology, University of Oklahoma, Norman, United States.,Center for Spatial Analysis, University of Oklahoma, Norman, United States.,Institute of Biodiversity Science, Fudan University, Shanghai, China
| | - Sophie Von Dobschuetz
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Filip Claes
- Emergency Center for Transboundary Animal Diseases, FAO Regional Office for Asia and the Pacific, Bangkok, Thailand
| | - Scott H Newman
- Emergency Center for Transboundary Animal Diseases, Food and Agriculture Organization of the United Nations, Hanoi, Vietnam
| | - Gwenaëlle Dauphin
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Rome, Italy
| | - Marius Gilbert
- Spatial Epidemiology Lab, Université Libre de Bruxelles, Brussels, Belgium.,Fonds National de la Recherche Scientifique, Brussels, Belgium
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10
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Artois J, Newman SH, Dhingra MS, Chaiban C, Linard C, Cattoli G, Monne I, Fusaro A, Xenarios I, Engler R, Liechti R, Kuznetsov D, Pham TL, Nguyen T, Pham VD, Castellan D, Von Dobschuetz S, Claes F, Dauphin G, Inui K, Gilbert M. Clade-level Spatial Modelling of HPAI H5N1 Dynamics in the Mekong Region Reveals New Patterns and Associations with Agro-Ecological Factors. Sci Rep 2016; 6:30316. [PMID: 27453195 PMCID: PMC4958987 DOI: 10.1038/srep30316] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 07/04/2016] [Indexed: 11/16/2022] Open
Abstract
The highly pathogenic avian influenza (HPAI) H5N1 virus has been circulating in Asia since 2003 and diversified into several genetic lineages, or clades. Although the spatial distribution of its outbreaks was extensively studied, differences in clades were never previously taken into account. We developed models to quantify associations over time and space between different HPAI H5N1 viruses from clade 1, 2.3.4 and 2.3.2 and agro-ecological factors. We found that the distribution of clades in the Mekong region from 2004 to 2013 was strongly regionalised, defining specific epidemiological zones, or epizones. Clade 1 became entrenched in the Mekong Delta and was not supplanted by newer clades, in association with a relatively higher presence of domestic ducks. In contrast, two new clades were introduced (2.3.4 and 2.3.2) in northern Viet Nam and were associated with higher chicken density and more intensive chicken production systems. We suggest that differences in poultry production systems in these different epizones may explain these associations, along with differences in introduction pressure from neighbouring countries. The different distribution patterns found at the clade level would not be otherwise apparent through analysis treating all outbreaks equally, which requires improved linking of disease outbreak records and genetic sequence data.
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Affiliation(s)
- Jean Artois
- Biological Control and Spatial Ecology, Université Libre de Bruxelles, Brussels, Belgium
| | - Scott H. Newman
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations, Hanoi, Viet Nam
| | - Madhur S. Dhingra
- Biological Control and Spatial Ecology, Université Libre de Bruxelles, Brussels, Belgium
- Department of Animal Husbandry & Dairying, Government of Haryana, India
| | - Celia Chaiban
- Biological Control and Spatial Ecology, Université Libre de Bruxelles, Brussels, Belgium
- Earth and Life Institute (ELI), Université catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
| | - Catherine Linard
- Biological Control and Spatial Ecology, Université Libre de Bruxelles, Brussels, Belgium
- Department of Geography, Université de Namur, Namur, Belgium
| | - Giovanni Cattoli
- Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture Department of Nuclear Sciences and Applications, International Atomic Energy Agency, Seibersdorf, Austria
| | - Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro (Padua), Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro (Padua), Italy
| | - Ioannis Xenarios
- Swiss-Prot & Vital-IT group, Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
- Center for Integrative Genomics (CIG), University of Lausanne, Lausanne, Switzerland
| | - Robin Engler
- Swiss-Prot & Vital-IT group, Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Robin Liechti
- Swiss-Prot & Vital-IT group, Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Dmitri Kuznetsov
- Swiss-Prot & Vital-IT group, Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Thanh Long Pham
- Department of Animal Health, Epidemiology Division, Ministry of Agriculture and Rural Development, Hanoi, Viet Nam
| | - Tung Nguyen
- Department of Animal Health, Epidemiology Division, Ministry of Agriculture and Rural Development, Hanoi, Viet Nam
| | - Van Dong Pham
- Department of Animal Health, Epidemiology Division, Ministry of Agriculture and Rural Development, Hanoi, Viet Nam
| | - David Castellan
- Emergency Center for Transboundary Animal Diseases (ECTAD), FAO Regional Office for Asia and the Pacific (FAO-RAP), Bangkok, Thailand
| | - Sophie Von Dobschuetz
- Animal Production and Health Division (AGAH), Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Filip Claes
- Animal Production and Health Division (AGAH), Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Gwenaëlle Dauphin
- Animal Production and Health Division (AGAH), Food and Agriculture Organization of the United Nations (FAO), Rome, Italy
| | - Ken Inui
- Emergency Center for Transboundary Animal Diseases (ECTAD), Food and Agriculture Organization of the United Nations, Hanoi, Viet Nam
| | - Marius Gilbert
- Biological Control and Spatial Ecology, Université Libre de Bruxelles, Brussels, Belgium
- Fonds National de la Recherche Scientifique, Brussels, Belgium
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11
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Arafa AS, Naguib MM, Luttermann C, Selim AA, Kilany WH, Hagag N, Samy A, Abdelhalim A, Hassan MK, Abdelwhab EM, Makonnen Y, Dauphin G, Lubroth J, Mettenleiter TC, Beer M, Grund C, Harder TC. Emergence of a novel cluster of influenza A(H5N1) virus clade 2.2.1.2 with putative human health impact in Egypt, 2014/15. ACTA ACUST UNITED AC 2015; 20:2-8. [PMID: 25860390 DOI: 10.2807/1560-7917.es2015.20.13.21085] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A distinct cluster of highly pathogenic avian influenzaviruses of subtype A(H5N1) has been found to emergewithin clade 2.2.1.2 in poultry in Egypt since summer2014 and appears to have quickly become predominant.Viruses of this cluster may be associated withincreased incidence of human influenza A(H5N1) infectionsin Egypt over the last months.
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Affiliation(s)
- A S Arafa
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza, Egypt
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12
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Freidl GS, Meijer A, de Bruin E, de Nardi M, Munoz O, Capua I, Breed AC, Harris K, Hill A, Kosmider R, Banks J, von Dobschuetz S, Stark K, Wieland B, Stevens K, van der Werf S, Enouf V, van der Meulen K, Van Reeth K, Dauphin G, Koopmans M, FLURISK Consortium. Influenza at the animal–human interface: a review of the literature for virological evidence of human infection with swine or avian influenza viruses other than A(H5N1). Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.18.20793] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Factors that trigger human infection with animal influenza virus progressing into a pandemic are poorly understood. Within a project developing an evidence-based risk assessment framework for influenza viruses in animals, we conducted a review of the literature for evidence of human infection with animal influenza viruses by diagnostic methods used. The review covering Medline, Embase, SciSearch and CabAbstracts yielded 6,955 articles, of which we retained 89; for influenza A(H5N1) and A(H7N9), the official case counts of the World Health Organization were used. An additional 30 studies were included by scanning the reference lists. Here, we present the findings for confirmed infections with virological evidence. We found reports of 1,419 naturally infected human cases, of which 648 were associated with avian influenza virus (AIV) A(H5N1), 375 with other AIV subtypes, and 396 with swine influenza virus (SIV). Human cases naturally infected with AIV spanned haemagglutinin subtypes H5, H6, H7, H9 and H10. SIV cases were associated with endemic SIV of H1 and H3 subtype descending from North American and Eurasian SIV lineages and various reassortants thereof. Direct exposure to birds or swine was the most likely source of infection for the cases with available information on exposure.
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Affiliation(s)
- G S Freidl
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Diseases Research, Diagnostics and Screening (IDS), Bilthoven, the Netherlands
- Department of Viroscience, Erasmus Medical Center, Rotterdam, the Netherlands
| | - A Meijer
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Diseases Research, Diagnostics and Screening (IDS), Bilthoven, the Netherlands
| | - E de Bruin
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Diseases Research, Diagnostics and Screening (IDS), Bilthoven, the Netherlands
| | - M de Nardi
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, OIE Collaborating Centre for Diseases at the Human–Animal Interface, Padova, Italy
| | - O Munoz
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, OIE Collaborating Centre for Diseases at the Human–Animal Interface, Padova, Italy
| | - I Capua
- Istituto Zooprofilattico Sperimentale delle Venezie (IZSVe), OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, OIE Collaborating Centre for Diseases at the Human–Animal Interface, Padova, Italy
| | - A C Breed
- Animal Health and Veterinary Agency (AHVLA), Surrey, United Kingdom
| | - K Harris
- Animal Health and Veterinary Agency (AHVLA), Surrey, United Kingdom
| | - A Hill
- Animal Health and Veterinary Agency (AHVLA), Surrey, United Kingdom
- Royal Veterinary College (RVC), London, United Kingdom
| | - R Kosmider
- Animal Health and Veterinary Agency (AHVLA), Surrey, United Kingdom
| | - J Banks
- Animal Health and Veterinary Agency (AHVLA), Surrey, United Kingdom
| | - S von Dobschuetz
- United Nations Food and Agricultural Organization (FAO), Rome, Italy
- Royal Veterinary College (RVC), London, United Kingdom
| | - K Stark
- Royal Veterinary College (RVC), London, United Kingdom
| | - B Wieland
- Royal Veterinary College (RVC), London, United Kingdom
| | - K Stevens
- Royal Veterinary College (RVC), London, United Kingdom
| | | | - V Enouf
- Institut Pasteur, Paris, France
| | | | | | - G Dauphin
- United Nations Food and Agricultural Organization (FAO), Rome, Italy
| | - M Koopmans
- Department of Viroscience, Erasmus Medical Center, Rotterdam, the Netherlands
- National Institute for Public Health and the Environment (RIVM), Centre for Infectious Diseases Research, Diagnostics and Screening (IDS), Bilthoven, the Netherlands
| | - FLURISK Consortium
- http://www.izsvenezie.it/index.php?option=com_content&view=article&id=1203&Itemid=629
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13
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De Nardi M, Hill A, von Dobschuetz S, Munoz O, Kosmider R, Dewe T, Harris K, Freidl G, Stevens K, van der Meulen K, Stäerk K, Breed A, Meijer A, Koopmans M, Havelaar A, van der Werf S, Banks J, Wieland B, van Reeth K, Dauphin G, Capua I. Development of a risk assessment methodological framework for potentially pandemic influenza strains (FLURISK). ACTA ACUST UNITED AC 2014. [DOI: 10.2903/sp.efsa.2014.en-571] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- M. De Nardi
- Istituto Zooprofilattico Sperimentale delle Venezie (Project Coordinator) Italy
| | - A. Hill
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - S. von Dobschuetz
- Royal Veterinary College (RVC) United Kingdom
- Food and Agricultural Organization of the United Nations (FAO) Italy
| | - O. Munoz
- Istituto Zooprofilattico Sperimentale delle Venezie (Project Coordinator) Italy
| | - R. Kosmider
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - T. Dewe
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - K. Harris
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - G. Freidl
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases Research, Diagnostics and Screening (IDS) the Netherlands
| | - K. Stevens
- Royal Veterinary College (RVC) United Kingdom
| | - K. van der Meulen
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University Belgium
| | | | - A. Breed
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - A. Meijer
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases Research, Diagnostics and Screening (IDS) the Netherlands
| | - M. Koopmans
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases Research, Diagnostics and Screening (IDS) the Netherlands
| | - A. Havelaar
- National Institute for Public Health and the Environment (RIVM), Laboratory for Infectious Diseases Research, Diagnostics and Screening (IDS) the Netherlands
| | | | - J. Banks
- Animal Health and Veterinary Agency (AHVLA) United Kingdom
| | - B. Wieland
- Royal Veterinary College (RVC) United Kingdom
| | - K. van Reeth
- Laboratory of Virology, Faculty of Veterinary Medicine, Ghent University Belgium
| | - G. Dauphin
- Food and Agricultural Organization of the United Nations (FAO) Italy
| | - I. Capua
- Istituto Zooprofilattico Sperimentale delle Venezie (Project Coordinator) Italy
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14
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Monne I, Yamage M, Dauphin G, Claes F, Ahmed G, Giasuddin M, Salviato A, Ormelli S, Bonfante F, Schivo A, Cattoli G. Reassortant avian influenza A(H5N1) viruses with H9N2-PB1 gene in poultry, Bangladesh. Emerg Infect Dis 2014; 19:1630-4. [PMID: 24047513 PMCID: PMC3811991 DOI: 10.3201/eid1910.130534] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bangladesh has reported a high number of outbreaks of highly pathogenic avian influenza (HPAI) (H5N1) in poultry. We identified a natural reassortant HPAI (H5N1) virus containing a H9N2-PB1 gene in poultry in Bangladesh. Our findings highlight the risks for prolonged co-circulation of avian influenza viruses and the need to monitor their evolution.
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15
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Vergne T, Grosbois V, Jobre Y, Saad A, El Nabi AA, Galal S, Kalifa M, El Kader SA, Dauphin G, Roger F, Lubroth J, Peyre M. Avian influenza vaccination of poultry and passive case reporting, Egypt. Emerg Infect Dis 2013; 18:2076-8. [PMID: 23171740 PMCID: PMC3557869 DOI: 10.3201/eid1812.120616] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We investigated the influence of a mass poultry vaccination campaign on passive surveillance of highly pathogenic avian influenza subtype (H5N1) outbreaks among poultry in Egypt. Passive reporting dropped during the campaign, although probability of infection remained unchanged. Future poultry vaccination campaigns should consider this negative impact on reporting for adapting surveillance strategies.
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Affiliation(s)
- Timothée Vergne
- Centre International de Recherche en Agriculture pour le Développement, Montpellier, France.
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16
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Vincent A, Awada L, Brown I, Chen H, Claes F, Dauphin G, Donis R, Culhane M, Hamilton K, Lewis N, Mumford E, Nguyen T, Parchariyanon S, Pasick J, Pavade G, Pereda A, Peiris M, Saito T, Swenson S, Van Reeth K, Webby R, Wong F, Ciacci-Zanella J. Review of Influenza A Virus in Swine Worldwide: A Call for Increased Surveillance and Research. Zoonoses Public Health 2013; 61:4-17. [DOI: 10.1111/zph.12049] [Citation(s) in RCA: 206] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Indexed: 11/30/2022]
Affiliation(s)
- A. Vincent
- Virus and Prion Research Unit; USDA-ARS NADC; Ames IA USA
| | - L. Awada
- World Organization for Animal Health (OIE); Paris France
| | - I. Brown
- Animal Health and Veterinary Laboratories Agency; Weybridge UK
| | - H. Chen
- Harbin Veterinary Research Institute; Harbin China
| | - F. Claes
- Food and Agriculture Organization of the United Nations (FAO); Rome Italy
| | - G. Dauphin
- Food and Agriculture Organization of the United Nations (FAO); Rome Italy
| | | | - M. Culhane
- University of Minnesota Veterinary Diagnostic Lab; St. Paul MN USA
| | - K. Hamilton
- World Organization for Animal Health (OIE); Paris France
| | - N. Lewis
- Department of Zoology; University of Cambridge; Cambridge UK
| | - E. Mumford
- World Health Organization (WHO); Geneva Switzerland
| | - T. Nguyen
- Department of Animal Health; National Centre for Veterinary Diagnostics; Hanoi Vietnam
| | | | - J. Pasick
- Canadian Food Inspection Agency; Winnepeg Canada
| | - G. Pavade
- World Organization for Animal Health (OIE); Paris France
| | - A. Pereda
- Instituto de Virología - INTA; Buenos Aires Argentina
| | - M. Peiris
- Hong Kong University; Hong Kong City Hong Kong
| | - T. Saito
- National Institute of Animal Health; Ibaraki Japan
| | | | | | - R. Webby
- St. Jude Children's Research Hospital; Memphis TN USA
| | - F. Wong
- Australian Animal Health Laboratory; CSIRO Livestock Industries; Geelong Vic. Australia
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17
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Dauphin G, de Araujo PC, Forget P, Leroy P, Rausin L, Demarche M. [Atypical clinical presentation of a neuroblastoma in an infant]. Rev Med Liege 2013; 68:56-60. [PMID: 23469484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A babygirl, aged six weeks, was hospitalized for rectal prolapse and isolated constipation. The investigation revealed a neuroblastoma (NB) inducing a medullar compression responsible for the sphincter disorders. NB is second among pediatric solid tumors, but is the most frequent cancer among infants. Its diagnosis is difficult because of its rarity and the variety of its symptoms. A new staging, based on imaging, has recently been proposed by the International Neuroblastoma Risk Group. With the exception of its localized, easily resectable forms, NB is best treated by chemotherapy.
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Affiliation(s)
- G Dauphin
- Service de Pédiatrie, CHR Citadelle, Liège
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18
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Arafa A, Suarez D, Kholosy SG, Hassan MK, Nasef S, Selim A, Dauphin G, Kim M, Yilma J, Swayne D, Aly MM. Evolution of highly pathogenic avian influenza H5N1 viruses in Egypt indicating progressive adaptation. Arch Virol 2012; 157:1931-47. [PMID: 22760662 DOI: 10.1007/s00705-012-1385-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 05/13/2012] [Indexed: 12/20/2022]
Abstract
Highly pathogenic avian influenza (HPAI) virus of the H5N1 subtype was first diagnosed in poultry in Egypt in 2006, and since then the disease became enzootic in poultry throughout the country, affecting the poultry industry and village poultry as well as infecting humans. Vaccination has been used as a part of the control strategy to help to control the disease. Epidemiological data with sequence analysis of H5N1 viruses is important to link the mechanism of virus evolution in Egypt. This study describes the evolutionary pattern of Egyptian H5N1 viruses based on molecular characterization for the isolates collected from commercial poultry farms and village poultry from 2006 to 2011. Genetic analysis of the hemagglutinin (HA) gene was done by sequencing of the full-length H5 gene. The epidemiological pattern of disease outbreaks in Egyptian poultry farms seems to be seasonal with no specific geographic distribution across the country. The molecular epidemiological data revealed that there are two major groups of viruses: the classic group of subclade 2.2.1 and a variant group of 2.2.1.1. The classic group is prevailing mainly in village poultry and had fewer mutations compared to the originally introduced virus in 2006. Since 2009, this group has started to be transmitted back to commercial sectors. The variant group emerged by late 2007, was prevalent mainly in vaccinated commercial poultry, mutated continuously at a higher rate until 2010, and started to decline in 2011. Genetic analysis of the neuraminidase (NA) gene and the other six internal genes indicates a grouping of the Egyptian viruses similar to that obtained using the HA gene, with no obvious reassortments. The results of this study indicate that HPAI-H5N1 viruses are progressively evolving and adapting in Egypt and continue to acquire new mutations every season.
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Affiliation(s)
- A Arafa
- National Laboratory for Veterinary Quality Control on Poultry Production, Animal Health Research Institute, Dokki, Giza, Egypt.
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19
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Anderson T, Capua I, Dauphin G, Donis R, Fouchier R, Mumford E, Peiris M, Swayne D, Thiermann A. FAO-OIE-WHO Joint Technical Consultation on Avian Influenza at the Human-Animal Interface. Influenza Other Respir Viruses 2010; 4 Suppl 1:1-29. [PMID: 20491978 DOI: 10.1111/j.1750-2659.2009.00114.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
For the past 10 years, animal health experts and human health experts have been gaining experience in the technical aspects of avian influenza in mostly separate fora. More recently, in 2006, in a meeting of the small WHO Working Group on Influenza Research at the Human Animal Interface (Meeting report available from: http://www.who.int/csr/resources/publications/influenza/WHO_CDS_EPR_GIP_2006_3/en/index.html) in Geneva allowed influenza experts from the animal and public health sectors to discuss together the most recent avian influenza research. Ad hoc bilateral discussions on specific technical issues as well as formal meetings such as the Technical Meeting on HPAI and Human H5N1 Infection (Rome, June, 2007; information available from: http://www.fao.org/avianflu/en/conferences/june2007/index.html) have increasingly brought the sectors together and broadened the understanding of the topics of concern to each sector. The sectors have also recently come together at the broad global level, and have developed a joint strategy document for working together on zoonotic diseases (Joint strategy available from: ftp://ftp.fao.org/docrep/fao/011/ajl37e/ajl37e00.pdf). The 2008 FAO-OIE-WHO Joint Technical Consultation on Avian Influenza at the Human Animal Interface described here was the first opportunity for a large group of influenza experts from the animal and public health sectors to gather and discuss purely technical topics of joint interest that exist at the human-animal interface. During the consultation, three influenza-specific sessions aimed to (1) identify virological characteristics of avian influenza viruses (AIVs) important for zoonotic and pandemic disease, (2) evaluate the factors affecting evolution and emergence of a pandemic influenza strain and identify existing monitoring systems, and (3) identify modes of transmission and exposure sources for human zoonotic influenza infection (including discussion of specific exposure risks by affected countries). A final session was held to discuss broadening the use of tools and systems to other emerging zoonotic diseases. The meeting was structured as short technical presentations with substantial time available for facilitated discussion, to take advantage of the vast influenza knowledge and experience available from the invited expert participants. Particularly important was the identification of gaps in knowledge that have not yet been filled by either sector. Technical discussions focused on H5N1, but included other potentially zoonotic avian and animal influenza viruses whenever possible. During the consultation, the significant threat posed by subtypes other than H5N1 was continually emphasized in a variety of contexts. It was stressed that epidemiological and virological surveillance for these other viruses should be broadening and strengthened. The important role of live bird markets (LBMs) in amplifying and sustaining AIVs in some countries was also a recurring topic, and the need for better understanding of the role of LBMs in human zoonotic exposure and infection was noted. Much is understood about the contribution of various virus mutations and gene combinations to transmissibility, infectivity, and pathogenicity, although it was agreed that the specific constellation of gene types and mutations that would characterize a potentially pandemic virus remains unclear. The question of why only certain humans have become infected with H5N1 in the face of massive exposure in some communities was frequently raised during discussion of human exposure risks. It was suggested that individual-level factors may play a role. More research is needed to address this as well as questions of mode of transmission, behaviors associated with increased risk, virological and ecological aspects, and viral persistence in the environment in order to better elucidate specific human exposure risks. It became clear that great strides have been made in recent years in collaboration between the animal health and public health sectors, especially at the global level. In some countries outbreaks of H5N1 are being investigated jointly. Even greater transparency, cooperation, and information and materials exchange would allow more timely and effective responses in emergency situations, as well as in assessment and planning phases. Ensuring sustainability was also frequently emphasized, e.g. in infrastructure and capacity development and in development of tools and systems for surveillance, assessment and response. It was suggested that one way for tools and systems built or planned to address avian influenza to become more sustainable would be to make them applicable for a broader array of existing and emerging zoonotic diseases.
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20
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Domenech J, Dauphin G, Rushton J, McGrane J, Lubroth J, Tripodi A, Gilbert J, Sims LD. Experiences with vaccination in countries endemically infected with highly pathogenic avian influenza: the Food and Agriculture Organization perspective. REV SCI TECH OIE 2009; 28:293-305. [PMID: 19618633 DOI: 10.20506/rst.28.1.1865] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Vaccination has been used extensively for the control and prevention of highly pathogenic avian influenza (HPAI) caused by viruses of the H5N1 subtype in endemically infected countries. The Food and Agriculture Organization views vaccination as a legitimate aid in the control and prevention of infection and disease caused by HPAI viruses but does not see it as a panacea. Vaccination should be used as just one in a number of measures used together to reduce the effect and risk of infection. It will be required for a considerable time in endemically infected countries. The methods used in Vietnam in implementing blanket vaccination against H5N1 HPAI viruses demonstrate the steps that should be considered when introducing vaccination. So far, it has not been possible to determine the precise effect of vaccination in endemically infected countries because it has been used in combination with other measures. Well managed vaccination campaigns will reduce the incidence of infection in poultry and therefore reduce the risk to humans from these viruses. Vaccination was implemented to protect both poultry and humans, with a major goal being to reduce the risk of emergence of a human influenza pandemic virus. Economic analysis of vaccination should focus on cost-effectiveness of proposed strategies. Ex-ante and ex-post evaluation of vaccination campaigns should take into account the benefits generated in the poultry sector and for human health.
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Affiliation(s)
- J Domenech
- Food and Agriculture Organization, Viale delle Terme di Caracalla, 00100 Rome, Italy
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Monne I, Fusaro A, Al-Blowi MH, Ismail MM, Khan OA, Dauphin G, Tripodi A, Salviato A, Marangon S, Capua I, Cattoli G. Co-circulation of two sublineages of HPAI H5N1 virus in the Kingdom of Saudi Arabia with unique molecular signatures suggesting separate introductions into the commercial poultry and falconry sectors. J Gen Virol 2009; 89:2691-2697. [PMID: 18931064 PMCID: PMC2886959 DOI: 10.1099/vir.0.2008/004259-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Since early 2007, the Kingdom of Saudi Arabia (KSA) has experienced several highly pathogenic avian influenza (HPAI) H5N1 outbreaks in the falconry and poultry sectors. The public health threat associated with peculiar husbandry systems, requiring close contact between humans and birds of prey, highlights the need of an improved understanding of the epidemiology and of the viral characteristics of H5N1 viruses circulating in the region. Here we report molecular and phylogenetic analyses of H5N1 viruses isolated in the KSA in 2007 in distinct compartments of avian husbandry. From the results of our investigation it appears that two separate introductions into the different sectors occurred. The identification of specific amino acid mutations, which are described as genetic signatures of human influenza A viruses or known to confer resistance to antiviral drugs, raises concerns for the possible human health implications of the KSA H5N1 viruses.
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Affiliation(s)
- Isabella Monne
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
| | - Alice Fusaro
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
| | - Mohamed Hamad Al-Blowi
- Veterinary Labs Administration, Ministry of Agriculture, Riyadh, Kingdom of Saudi Arabia
| | - Mahmoud Moussa Ismail
- Department of Poultry Diseases, College of Veterinary Medicine, Kafr-Elsheikh University, Egypt
| | - Owais Ahmed Khan
- Central Veterinary Diagnostic Laboratory, PO Box 15831, Riyadh 11454, Kingdom of Saudi Arabia
| | - Gwenaëlle Dauphin
- Animal Health Service, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153 Rome, Italy
| | - Astrid Tripodi
- Animal Health Service, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153 Rome, Italy
| | - Annalisa Salviato
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
| | - Stefano Marangon
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
| | - Ilaria Capua
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
| | - Giovanni Cattoli
- Istituto Zooprofilattico Sperimentale delle Venezie, OIE/FAO and National Reference Laboratory for Newcastle Disease and Avian Influenza, Viale dell'Università 10, Legnaro, Padova, Italy
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Dauphin G, Zientara S. West Nile virus: recent trends in diagnosis and vaccine development. Vaccine 2006; 25:5563-76. [PMID: 17292514 DOI: 10.1016/j.vaccine.2006.12.005] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2006] [Revised: 11/17/2006] [Accepted: 12/01/2006] [Indexed: 11/30/2022]
Abstract
West Nile virus (WNV) is a mosquito-borne flavivirus, native to Africa, Europe, and Western Asia. In many respects, WNV is an outstanding example of a zoonotic pathogen that has leaped geographical barriers and can cause severe disease in human and horse. Before the emergence of WNV in the USA, only few methods of diagnosis were available. Recently, many changes in the fields of WN diagnosis and prevention have happened. This paper will review all these new tools. After a description of the main concerns in WNV and West Nile (WN) disease in humans and animals, this review will present the main available tests for serology and virology detection, from gold standard tests to more recently developed methods. Finally, licensed vaccines and candidate vaccines developed in humans, horses and birds will also been described.
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Affiliation(s)
- G Dauphin
- AFSSA Alfort, UMR1161 (INRA-AFSSA-ENVA), 23 av Général de Gaulle, 94703 Maisons-Alfort Cedex, France
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Durand B, Dauphin G, Zeller H, Labie J, Schuffenecker I, Murri S, Moutou F, Zientara S. Serosurvey for West Nile virus in horses in southern France. Vet Rec 2005; 157:711-3. [PMID: 16311385 DOI: 10.1136/vr.157.22.711] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- B Durand
- Agence Française de Sécurité Sanitaire des Aliments, 22 rue Pierre Curie, 94703 Maisons-Alfort Cedex 07, France
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Dauphin G, Zientara S. [West Nile virus infections: overview and epidemiological update]. Virologie (Montrouge) 2005; 9:395-408. [PMID: 34679285 DOI: 10.1684/vir.2011.2401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
West Nile virus, a flavivirus transmitted by mosquitoes, has been intensively studied since a few years because of epidemics/epizootics it has caused the last ten years, in particular around the Mediterranean basin and on the North-American continent. This virus mainly circulates in birds ; migrating bird species disseminate the virus while resident species could play a role in viral cycle amplification. A large number of mammal, amphibian and reptile species can also be infected. This virus can cause a lethal disease in humans and horses. For this reason, an active and/or passive surveillance is carried out in France and in United States at different steps of the transmission cycle : insects, birds, horses and humans. This surveillance is aimed at precociously detecting viral circulation and, if detected, take suitable information, prevention and fight measures. Furthermore, the description of new transmission routes of infection has led to precaution measures for blood and organ donations in the US and in a lesser extent, in France. As West Nile epidemiology is only partially known, most of epidemics remain unpredictable and difficult to control.
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Affiliation(s)
- G Dauphin
- Agence française de sécurité sanitaire des aliments, UMR 1161 de virologie (Inra/Afssa/Enva), 23 avenue du Général-de-Gaulle, 94703 Maisons-Alfort
| | - S Zientara
- Agence française de sécurité sanitaire des aliments, UMR 1161 de virologie (Inra/Afssa/Enva), 23 avenue du Général-de-Gaulle, 94703 Maisons-Alfort
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Dauphin G, Zientara S, Zeller H, Murgue B. Corrigendum to “West Nile: worldwide current situation in animals and humans” [Comparative Immunology Microbiology & Infectious Diseases 27 (2004) 343–355]. Comp Immunol Microbiol Infect Dis 2005. [DOI: 10.1016/j.cimid.2004.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dauphin G, Zientara S, Zeller H, Murgue B. West Nile: worldwide current situation in animals and humans. Comp Immunol Microbiol Infect Dis 2004; 27:343-55. [PMID: 15225984 DOI: 10.1016/j.cimid.2004.03.009] [Citation(s) in RCA: 144] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2004] [Indexed: 11/27/2022]
Abstract
West Nile (WN) virus is a mosquito-borne flavivirus that is native to Africa, Europe, and Western Asia. It mainly circulates among birds, but can infect many species of mammals, as well as amphibians and reptiles. Epidemics can occur in rural as well as urban areas. Transmission of WN virus, sometimes involving significant mortality in humans and horses, has been documented at erratic intervals in many countries, but never in the New World until it appeared in New York City in 1999. During the next four summers it spread with incredible speed to large portions of 46 US states, and to Canada, Mexico, Central America and the Caribbean. In many respects, WN virus is an outstanding example of a zoonotic pathogen that has leaped geographical barriers and can cause severe disease in human and equine. In Europe, in the past two decades there have been a number of significant outbreaks in several countries. However, very little is known of the ecology and natural history of WN virus transmission in Europe and most WN outbreaks in humans and animals remain unpredictable and difficult to control.
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Affiliation(s)
- Gwenaëlle Dauphin
- AFSSA Alfort, UMR1161 (INRA-AFSSA-ENVA), 22 rue Pierre Curie, BP 63, 94703 Maisons-Alfort Cedex, France
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Abstract
Bluetongue (BT) and/or BT viruses (BTV) have been identified in the Mediterranean basin and the Balkans each year from 1998 to 2002 and in particular BTV serotype 2 in the French Island of Corsica (2000 and 2001). In response to these virus incursions, the French Veterinary Authorities carried out epidemiological studies that included virological, serological and entomological analysis, and two vaccination campaigns performed in the winter of 2000/2001 and the winter and spring of 2001 and 2002. Rapid and reliable serotype differentiation is essential at the start of an outbreak to allow an early selection of vaccine to control the spread of the virus. Thus, molecular tools, that complement conventional methods, have been developed for early detection of infection, determination of the serotype, and differentiation between natural infection and vaccination. Serological results showed that the first vaccination campaign during the winter of 2000/2001 did not provide full protection for all sheep and during the summer of 2001, 335 sheep flocks in Corsica were again infected by BTV 2 (7-fold more that in 2000). Entomological studies have demonstrated that the only proven vector of the disease, Culicoides imicola, was present in the island in 2000 and that it has successfully established itself in Corsica. The safety and immunogenicity of the commercial South African vaccine were studied. Fourteen sheep were vaccinated and then observed for clinical signs. Blood, sera, spleen and lymph nodes were collected and analyzed, and the results confirmed the safety and potency of using this vaccine to protect sheep from clinical disease. As a result, an intensive vaccination campaign was performed during winter and spring 2001/2002. No cases of BT had been observed by the end of summer 2002, indicating that the vaccination campaign has been successful in protecting sheep from infection.
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Affiliation(s)
- Emmanuel Breard
- Agence Française de Sécurité Sanitaire des Aliments--UMR--APSSA--INRA--ENVA 1161 Alfort, 22, rue Pierre Curie, 94703 Maisons-Alfort, France.
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Pilet C, Dauphin G, Zientara S. Actualités en pathologie comparée : sur quelques maladies animales menaçantes pour l’homme. Bulletin de l'Académie Nationale de Médecine 2004. [PMID: 15656242 PMCID: PMC7111137 DOI: 10.1016/s0001-4079(19)33732-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Les dernières grandes alertes sanitaires dues à l’émergence de maladies infectieuses humaines sont toutes d’origine animale. Un certain nombre d’entre elles sont particulièrement menaçantes. Les auteurs appellent l’attention sur le danger que pourrait présenter l’extension de l’actuelle épizootie de grippe aviaire, soit directement, soit surtout indirectement, par le biais des réassortiments génétiques. Ils rappellent le rôle de l’animal dans l’épidémiologie du SRAS. Ils soulignent le danger dû au virus West Nile et évoquent le danger potentiel du virus de l’hépatite E et des virus Nipah et Hendra. Ils appellent l’attention sur une zoonose naissante : l’Ehrlichiose et sur l’extension en Europe et notamment en France de la maladie de Lyme. Les auteurs rappellent la nécessité d’une veille sanitaire s’exerçant non seulement chez l’homme mais également chez l’animal. Ils rappellent également l’importance de la restauration d’un enseignement sur les zoonoses, dans le cursus médical et d’un renforcement de la recherche sur les maladie transmissibles à l’homme.
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Zientara S, Sailleau C, Dauphin G, Roquier C, Rémond EM, Lebreton F, Hammoumi S, Dubois E, Agier C, Merle G, Bréard E. Identification of bluetongue virus serotype 2 (Corsican strain) by reverse-transcriptase PCR reaction analysis of segment 2 of the genome. Vet Rec 2002; 150:598-601. [PMID: 12036242 DOI: 10.1136/vr.150.19.598] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In October 2000, bluetongue virus was detected on the French island of Corsica. The disease was also reported in Sardinia, Calabria, Sicily and on the Spanish islands of Majorca and Minorca. This paper describes the use of molecular techniques for a rapid identification and serotype determination of serotype 2 of the virus. The nucleotide sequences of segments 2 and 7 of the genome of the Corsican strain were determined and its phylogenetic relationships are described.
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Affiliation(s)
- S Zientara
- Agence Française de Sécurité Sanitaire des Aliments-Alfort, France
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Albrecht-Gary AM, Blanc-Parasote S, Boyd DW, Dauphin G, Jeminet G, Juillard J, Prudhomme M, Tissier C. X-14885A: an ionophore closely related to calcimycin (A-23187). NMR, thermodynamic, and kinetic studies of cation selectivity. J Am Chem Soc 2002. [DOI: 10.1021/ja00205a007] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Beloeil JC, Delsuc MA, Lallemand JY, Dauphin G, Jeminet G. Application of homonuclear and heteronuclear two-dimensional chemical-shift correlation NMR spectroscopy to the complete assignment of proton and carbon-13 NMR spectra of ionophorous antibiotic X.14547 A. J Org Chem 2002. [DOI: 10.1021/jo00184a025] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dauphin G, Fauve A, Veschambre H. Use of biological systems for the preparation of chiral molecules. 6. Preparation of stereoisomeric 2,4-diols: synthesis and conformational study of bicyclo derivatives, isomeric components of a pheromone of Trypodendron lineatum. J Org Chem 2002. [DOI: 10.1021/jo00270a040] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
For over two centuries, Borna disease (BD) has been described as a sporadically occurring infectious meningoencephalomyelitis affecting horses and sheep in Central Europe. Over the last decade, the BD epidemiology has been discussed. Firstly, its geographical distribution seems larger than what was previously thought. Secondly, the disease can affect a large number of warm-blooded animal species, including humans. The aetiological agent is the Boma disease virus (BDV), an enveloped, nonsegmented negative-stranded RNA virus classified in the new virus family Bornaviridae (Mononegavirales order). It can induce severe clinical signs of encephalitis with striking behavioural disturbances and may cause death. BDV genome has recently been detected in France in the blood and brain of several animal species (horses, bovines, foxes).
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Dauphin G, Legay V, Sailleau C, Smondack S, Hammoumi S, Zientara S. Evidence of Borna disease virus genome detection in French domestic animals and in foxes (Vulpes vulpes). J Gen Virol 2001; 82:2199-2204. [PMID: 11514730 DOI: 10.1099/0022-1317-82-9-2199] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Borna disease virus (BDV) is an enveloped, non-segmented negative-stranded RNA virus which belongs to the Bornaviridae family. BDV is an aetiological agent of encephalitis in horses, sheep and several other vertebrate species. In order to extend our knowledge about the presence of BDV in France, a study based on BDV RNA detection by RT-nested-PCR was done with 196 animal tissues: 171 brain samples collected from different animal species (75 horses, 59 foxes, 31 cattle, 4 dogs, 1 sheep, 1 roe deer) and 25 horse blood samples. An RNA internal standard molecule was constructed and was co-amplified with the test template. This study reports the first detection of BDV RNA in France in 10 brain samples collected from horses, foxes and cattle, and from 14 horse blood samples. Detection of the BDV genome in the brains of six red foxes is the first evidence of BDV infection in this species.
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Affiliation(s)
- G Dauphin
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
| | - V Legay
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
| | - C Sailleau
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
| | - S Smondack
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
| | - S Hammoumi
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
| | - S Zientara
- AFSSA Alfort, 22 rue Pierre Curie, 94703 Maisons-Alfort cedex, France1
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Dauphin G, Ragimbeau C, Malle P. Use of PFGE typing for tracing contamination with Listeria monocytogenes in three cold-smoked salmon processing plants. Int J Food Microbiol 2001; 64:51-61. [PMID: 11252511 DOI: 10.1016/s0168-1605(00)00442-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The sites of Listeria monocytogenes contamination in three cold-smoked salmon (Salmo salar) processing plants were detected by sampling salmon and the plant's environment and equipment at different production stages. Of the 141 samples collected from three processing plants, 59 (42%) were contaminated with L. monocytogenes. The rates of contamination varied as to the plant and the sample source. L. monocytogenes isolates from 17 various contaminated seafood products (fresh, frozen and smoked fishes, cooked mussels) were also studied. A total of 155 isolates from the three plants and the various seafoods were characterized by genomic macrorestriction using ApaI and SmaI with pulsed-field gel electrophoresis (PFGE) and 82 isolates were serotyped. Macrorestriction yielded 20 pulsotypes and serotyping yielded four serovars: 1/2a, 1/2b, 1/2c, 4b (or e), with 77 (93%) belonging to serovar 1/2a. One clone of L. monocvtogenes predominated and persisted in plant I and was the only pulsotype detected in the final product although it was not isolated from raw salmon. No L. monocytogenes was detected in the smoked skinned salmon processed in plant II, even though 87% of the raw salmon was contaminated. All the smoked salmon samples collected in plant III were contaminated with a unique clone of L. monocytogenes, which may have occurred during slicing. In the three plants, the contamination of final products did not seem to originate from the L. monocytogenes present on raw salmon, but from the processing environment.
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Affiliation(s)
- G Dauphin
- Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Etude des Produits de la Mer, Boulogne sur Mer, France.
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Legay V, Sailleau C, Dauphin G, Zientara S. Construction of an internal standard used in RT nested PCR for Borna Disease Virus RNA detection in biological samples. Vet Res 2000; 31:565-72. [PMID: 11129800 DOI: 10.1051/vetres:2000140] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The highly neurotropic Borna Disease Virus (BDV), which belongs to the Mononegavirales order--Bornaviridae family--is generally detected using the RT-nested-PCR. If false positive results (often caused by laboratory contaminations) can be avoided, some false negative results which are mostly due to inhibitory effects of some reaction components and/or to sample preparation errors, can occur. Thus, in order to control the RT-PCR sample, an RNA internal standard molecule named "mimic" was constructed with the same primer recognition sites as the viral nucleic acids, flanking a heterologous DNA fragment of distinct molecular weight. Because of their different sizes, the mimic and viral PCR products can be easily discriminated by agarose gel electrophoresis. The co-amplification of both BDV and mimic RNA was performed on infected cells and on biological tissues such as the brain and blood, commonly known to contain PCR inhibitor components. After mimic sensitivity studies were achieved (2.5 fg of "p40 RNA mimic" and 0.25 fg of "p24 RNA mimic"), the competitive amplification reaction between both BDV and mimic RNA was performed on these tissues. The results confirmed that nervous tissue has an inhibitory effect on RT-PCR, which supports the necessity of BDV detection by a higher sensitive method such as RT nested PCR. Moreover, these results confirmed the interest of an internal standard for BDV RNA detection in biological samples.
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Affiliation(s)
- V Legay
- Agence Française de Sécurité Sanitaire des Aliments d'Alfort, Maisons-Alfort, France
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37
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Chriél M, Stryhn H, Dauphin G. Generalised linear mixed models analysis of risk factors for contamination of Danish broiler flocks with Salmonella typhimurium. Prev Vet Med 1999; 40:1-17. [PMID: 10343330 DOI: 10.1016/s0167-5877(99)00016-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We present a retrospective observational study of risk factors associated with the occurrence of Salmonella typhimurium (ST) in Danish broiler flocks. The study is based on recordings from 1994 in the ante-mortem database maintained by the Danish Poultry Council. The epidemiological units are the broiler flocks (about 4000 flocks) which are clustered within producers. Broiler flocks with ST-infected parent stocks show increased risk of salmonella infection, and also the hatchery affects the salmonella status significantly. Among the rearing factors, only the use of medicine as well as the time of rearing, and the sampling method are significant. Epidemiological control would seem most efficient on starting at the top levels of the production hierarchy from which a major part of the ST contamination is derived. A secondary purpose of the study is to evaluate different statistical approaches and software for the analysis of a moderately-sized data set of veterinary origin. We compare the results from five analyses of the generalised linear mixed model (GLMM) type. The first observation is that the results agree reasonably well and lead to similar conclusions. A closer look reveals certain patterns of bias and estimation accuracy that correspond well with theoretical findings and practical experience reported in the statistical literature.
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Affiliation(s)
- M Chriél
- Department of Animal Health and Animal Science, Royal Veterinary and Agricultural University, Fredriksberg, Denmark
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38
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Brandon A, Dauphin G, Leyreloup AM, Rajablat M. [ Emilio has hung himself...]. Soins Psychiatr 1998:32-4. [PMID: 9555514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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39
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Rochdi M, Delort AM, Guyot J, Sancelme M, Gibot S, Gourcy JG, Dauphin G, Gumila C, Vial H, Jeminet G. Ionophore properties of monensin derivatives studied on human erythrocytes by 23Na NMR and K+ and H+ potentiometry: relationship with antimicrobial and antimalarial activities. J Med Chem 1996; 39:588-95. [PMID: 8558531 DOI: 10.1021/jm9505829] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Eight derivatives of monensin with a modified C25-C26 moiety were synthesized. Their ionophore properties were studied on human erythrocytes by measuring Na+ influx with 23Na NMR and concomitant K+ and H+ efflux by potentiometry. Modification of OH-26 led to inversion of selectivity of transport in favor of K+/Na+ in comparison with monensin. This selectivity disappeared by suppression of the C26-OH moiety. Finally the ionophore ability was lost if the head-to-tail chelation of the monensin skeleton was prevented by blocking the terminal OH-25 and -26 functions. All the compounds were inactive on Gram-negative bacteria and fungi. MIC measured on Bacillus cereus showed that derivatives with increased K+/Na+ selectivity were clearly the most active against Bacillus growth. Most of the compounds showed potential antimalarial properties in the nanomolar range when tested in vitro against Plasmodium falciparum. The IC50S measured were correlated with the whole Na+ and K+ transport efficiency rather than with the ionic selectivity. In both cases determination of initial fluxes of transport for both cations (Na+ and K+) was necessary to investigate the relationship between biological and ionophore properties.
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Affiliation(s)
- M Rochdi
- Université Blaise Pascal, U.R.A. 485 du C.N.R.S., Laboratoire de Synthèse et Etude de Systèmes à Intérêt Biologique, Aubière, France
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Rochdi M, Delort A, Guyot J, Sancelme M, Dauphin G, Jeminet G. A new Na+ and K+ carrier from chemically modified monensin studied in human erythrocytes by 23Na nuclear magnetic resonance, K+ atomic absorption and H+ potentiometry. ACTA ACUST UNITED AC 1994. [DOI: 10.1016/0302-4598(94)87037-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Blache Y, Gueiffier A, Chavignon O, Teulade JC, Milhavet JC, Viols H, Chapat JP, Dauphin G. Heterocyclizations in the pyrido[2,3-b]pyrazine series. J Heterocycl Chem 1994. [DOI: 10.1002/jhet.5570310127] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rabaste F, Jeminet G, Dauphin G, Delort AM. Na+ and K+ transport by 4-chlorophenylurethane-monensin in Enterococcus hirae de-energized and energized cells studied by 23Na-NMR and K+ atomic absorption. Biochim Biophys Acta 1993; 1179:166-9. [PMID: 8218359 DOI: 10.1016/0167-4889(93)90138-f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Na+ and K+ movements induced by 4-chlorophenylurethane-monensin, which presents an inverted ion selectivity (K+ > Na+) in model systems compared with monensin, were followed on Enterococcus hirae cells by 23Na-NMR and K+ atomic absorption. For de-energized cells, the urethane derivative is much more selective for K+ than monensin, but only at low concentrations (10(-3)-10(-4) mM). For higher concentrations, as previously shown for monensin, the sodium and potassium movements are driven by the ion gradients present. On energized cells, both K+ and Na+ gradients were highly perturbed, and this can be related to the higher toxicity in mice and bacteria for this derivative.
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Affiliation(s)
- F Rabaste
- Laboratoire de Chimie Organique Biologique, U.R.A. 485 du CNRS, Université Blaise Pascal, Aubiere, France
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Rabaste F, Jeminet G, Dauphin G, Delort AM. Conditions modulating the ionic selectivity of transport by monensin examined on Enterococcus hirae (Streptococcus faecalis) by 23Na-NMR and K+ atomic absorption. Biochim Biophys Acta 1992; 1108:177-82. [PMID: 1637842 DOI: 10.1016/0005-2736(92)90023-f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Factors likely to modulate the ionic selectivity of monensin were examined on Enterococcus hirae (Streptococcus faecalis) in two states previously characterized: the resting (de-energized) cell and the active (energized) cell. Internal and external Na+ were followed by corresponding 23Na-NMR resonances K+ concentrations were measured by atomic absorption. For a given cellular population of de-energized cells, the apparent transport rates and the final cationic concentrations reached at the steady state were decreasing with the ionophore dose. Monensin was selective for sodium only at low concentrations, in the range 1 mM-10(-4) mM the transport was depending on the effective cationic gradients. Comparison of the activity curves for two cell populations (7.10(9) and 7.10(10) cells/ml) showed the importance of the ratios of monensin/mg phospholipid and also of the ratios of external/internal volumes. On energized cells, except for low monensin concentrations, the main effect was a K(+)-induced efflux and not a Na+ influx. Two factors were modulating the resulting selectivity of this ionophore: the response of the intrinsic bacterial carriers and the generation of the gradients (mainly the external pH) which were favourable to a K+/Na+ transport. Once again the results obtained for two cell populations could be compared, the determining factors were the ratio external/internal volume and the generation of the pH gradient.
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Affiliation(s)
- F Rabaste
- Laboratoire de Chimie Organique Biologique, U.R.A. 485 du CNRS. Université Blaise Pascal, Aubiere, France
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Chavignon O, Teulade JC, Madesclaire M, Gueiffier A, Blache Y, Viols H, Chapat JP, Dauphin G. Pyrrolization processes of vinyl substituted imidazo[1,2-a]pyridine, pyrimidine and 1,8-naphthyridine. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290403] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Gaudet G, Forano E, Dauphin G, Delort AM. Futile cycling of glycogen in Fibrobacter succinogenes as shown by in situ 1H-NMR and 13C-NMR investigation. Eur J Biochem 1992; 207:155-62. [PMID: 1628646 DOI: 10.1111/j.1432-1033.1992.tb17032.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glycogen was synthesized during all the growth phases in the rumen anaerobic cellulolytic bacterium Fibrobacter succinogenes. Glycogen synthesis and degradation were monitored using in situ 13C and 1H-NMR spectroscopy in resting cells of F. succinogenes. The cells were incubated at 37 degrees C under anaerobic conditions with [1-13C]glucose and [2-13C]glucose. 1H-NMR spectra were used to quantify enrichment by 13C of metabolism products. Glucose was utilized for energy requirements of the bacterium, essentially via the Embden-Meyerhof pathway, leading to the synthesis of succinate and acetate, while glycogen was stored. From [1-13C]glucose, labeling occurred on C2 of succinate and acetate, and on both C1 and C6 of glycogen, the labeling on C1 being predominant. The C6-labeling of glycogen may be explained by scrambling and reversal of the glycolytic pathway at the triose-phosphate and fructose 1,6-bisphosphate level. When the bacteria were incubated first with [1-13C]glucose, then washed and incubated with [2-13C]glucose, the pattern of 13C labeling in the products of the metabolism, as shown by 13C and 1H-NMR spectra, indicated that glycogen was degraded at the same time as it was being stored, suggesting futile cycling of glycogen. The hydrolysis of previously stored glycogen can provide, in the presence of glucose, up to 30% of the carbon source for the bacteria.
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Affiliation(s)
- G Gaudet
- Laboratoire de Microbiologie, INRA CR de Clermont-Ferrand-Theix, France
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Gueiffier A, Blache Y, Viols H, Chapat JP, Chavignon O, Teulade JC, Dauphin G, Debouzy JC, Chabard JL. Carbon-nitrogen bond formation in cyclisation by deoxygenation, thermolysis or photolysis of phenylimidazo[1,2-a][1,8]naphthyridines. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290202] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rabaste F, Dauphin G, Jeminet G, Guyot J, Delort AM. Phosphate-dependent sodium transport in S. faecalis investigated by 23Na and 31P NMR. Biochem Biophys Res Commun 1991; 181:74-9. [PMID: 1958221 DOI: 10.1016/s0006-291x(05)81383-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Na+ movements in S. faecalis were studied by 23Na NMR. They proved to be dependent on phosphate concentration in the buffer during the de-energization step. K+ and H+ were also studied respectively by potentiometry and 31P NMR and were shown not to be implicated. For de-energized cells the internal phosphate concentration, on the contrary, was directly linked to the external phosphate contained in the buffer. The experiments showed a Na+/Pi dependence in this prokaryote so far known only in eukaryotes.
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Affiliation(s)
- F Rabaste
- Université Blaise Pascal Clermont-Ferrand, Laboratoire de Chimie Organique Biologique-U.R.A., 485 du C.N.R.S., Aubière, France
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Affiliation(s)
- F Vaufrey
- Laboratoire de Chimie Organique Biologique, U.R.A. 485 du C.N.R.S., Université Blaise Pascal, Aubiere, France
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Gueiffier A, Viols H, Chapat JP, Chavignon O, Teulade JC, Dauphin G. Heterocyclic compounds with a bridgehead nitrogen atom. Synthesis in the imidazo[1,2-c]quinazoline series. J Heterocycl Chem 1990. [DOI: 10.1002/jhet.5570270259] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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