background preloader

Autres sites anglophones

Facebook Twitter

VIRUSES 19/03/21 Avian Influenza A Viruses Reassort and Diversify Differently in Mallards and Mammals. MDPI and ACS Style Ganti, K.; Bagga, A.; DaSilva, J.; Shepard, S.S.; Barnes, J.R.; Shriner, S.; Koelle, K.; Lowen, A.C.

VIRUSES 19/03/21 Avian Influenza A Viruses Reassort and Diversify Differently in Mallards and Mammals

Avian Influenza A Viruses Reassort and Diversify Differently in Mallards and Mammals. Viruses 2021, 13, 509. AMA Style. BIORXIV 09/02/21 Avian influenza A viruses reassort and diversify differently in mallards and mammals. BMC MEDICINE 02/12/20 Serological evidence of human infections with highly pathogenic avian influenza A(H5N1) virus: a systematic review and meta-analysis. 1.Ku AS, Chan LT.

BMC MEDICINE 02/12/20 Serological evidence of human infections with highly pathogenic avian influenza A(H5N1) virus: a systematic review and meta-analysis

The first case of H5N1 avian influenza infection in a human with complications of adult respiratory distress syndrome and Reye’s syndrome. J Paediatr Child Health. 1999;35(2):207–9.PubMed Article CAS Google Scholar 2.Shortridge KF, Zhou NN, Guan Y, Gao P, Ito T, Kawaoka Y, Kodihalli S, Krauss S, Markwell D, Murti KG, et al. Characterization of avian H5N1 influenza viruses from poultry in Hong Kong. Virology. 1998;252(2):331–42.PubMed Article CAS Google Scholar 3.Uyeki TM.

BIORXIV 17/11/20 Revealing interspecies transmission barriers of avian influenza A viruses. VIRUSES 23/10/20 A Review of Avian Influenza A Virus Associations in Synanthropic Birds. Avian influenza A viruses (IAV) have received significant attention due to the threat they pose to human, livestock, and wildlife health.

VIRUSES 23/10/20 A Review of Avian Influenza A Virus Associations in Synanthropic Birds

In this review, we focus on what is known about IAV dynamics in less common avian species that may play a role in trafficking IAVs to poultry operations. Specifically, we focus on synanthropic bird species. Synanthropic species, otherwise known as peridomestic, are species that are ecologically associated with humans and anthropogenically modified landscapes, such as agricultural and urban areas.

Aquatic birds such as waterfowl and shorebirds are the species most commonly associated with avian IAVs, and are generally considered the reservoir or maintenance hosts in the natural ecology of these viruses. Ludwig-Maximilians-Universität München - 2019 - Thèse en ligne: From low to high pathogenicity – Characterization of avian influenza viruses of subtypes H7 and H5. VIRUSES 28/05/20 Avian Influenza A Virus Infects Swine Airway Epithelial Cells without Prior Adaptation.

Pigs play an important role in the interspecies transmission of influenza A viruses (IAV).

VIRUSES 28/05/20 Avian Influenza A Virus Infects Swine Airway Epithelial Cells without Prior Adaptation

The porcine airway epithelium contains binding sites for both swine/human IAV (α2,6-linked sialic acids) and avian IAV (α2,3-linked sialic acids) and therefore is suited for adaptation of viruses from other species as suggested by the “mixing vessel theory”. Here, we applied well-differentiated swine airway epithelial cells to find out whether efficient infection by avian IAV requires prior adaption. Furthermore, we analyzed the influence of the sialic acid-binding activity and the virus-induced detrimental effects. Surprisingly, an avian IAV H1N1 strain circulating in European poultry and waterfowl shows increased and prolonged viral replication without inducing a strong innate immune response. This virus could infect the lower respiratory tract in our precision cut-lung slice model. BIORXIV 16/12/19 Proteomics Analysis of Differential Expression of Lung Proteins in Response to Highly Pathogenic Avian Influenza Virus Infection in Chicken.

VIRUSES 02/09/19 Virus Shedding of Avian Influenza in Poultry: A Systematic Review and Meta-Analysis. Understanding virus shedding patterns of avian influenza virus (AIV) in poultry is important for understanding host-pathogen interactions and developing effective control strategies.

VIRUSES 02/09/19 Virus Shedding of Avian Influenza in Poultry: A Systematic Review and Meta-Analysis

Many AIV strains were studied in challenge experiments in poultry, but no study has combined data from those studies to identify general AIV shedding patterns. These systematic review and meta-analysis were performed to summarize qualitative and quantitative information on virus shedding levels and duration for different AIV strains in experimentally infected poultry species. Methods were designed based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Four electronic databases were used to collect literature. A total of 1155 abstract were screened, with 117 studies selected for the qualitative analysis and 71 studies for the meta-analysis.

INTECH 09/06/19 Adequate Monitor of Avian Influenza Viral Infections and Foresight About Possibilities of Its Human Epidemic and Pandemic Infections. FRONT. VET. SCI. 27/04/19 Epidemiology of Avian Influenza Viruses. Avian influenza (AI) is a highly contagious viral disease, characterized by an intense circulation in many wild waterbird reservoir populations, with periodical introduction into the domestic poultry sector.

FRONT. VET. SCI. 27/04/19 Epidemiology of Avian Influenza Viruses

AI viruses have been the source of devastating economic losses in the poultry industry over the last three decades and have become a major veterinary and public health concern due to their zoonotic potential (1, 2). Outbreaks caused by highly pathogenic avian influenza (HPAI) viruses have caused serious animal health crises worldwide, such as the high case fatality rates in poultry, the control measures that are applied (massive pre-emptive culling or vaccination) and the consequences of virus detection on the international poultry produce trade.

Undoubtedly, the rapid and continuous evolution of AI viruses make their surveillance and control particularly challenging. Timely information is required to optimize the emergency response during outbreaks. Institut National Polytechnique de Toulouse (INP Toulouse) 12/01/17 Thèse en ligne : Avian influenza and co-infections: investigation of the interactions in the poultry models. Vet. Sci. 2019, 6(1), 5; Innate Immune Responses to Avian Influenza Viruses in Ducks and Chickens. Mallard ducks are important natural hosts of low pathogenic avian influenza (LPAI) viruses and many strains circulate in this reservoir and cause little harm.

Vet. Sci. 2019, 6(1), 5; Innate Immune Responses to Avian Influenza Viruses in Ducks and Chickens

Some strains can be transmitted to other hosts, including chickens, and cause respiratory and systemic disease. Rarely, these highly pathogenic avian influenza (HPAI) viruses cause disease in mallards, while chickens are highly susceptible. The long co-evolution of mallard ducks with influenza viruses has undoubtedly fine-tuned many immunological host–pathogen interactions to confer resistance to disease, which are poorly understood. Here, we compare innate responses to different avian influenza viruses in ducks and chickens to reveal differences that point to potential mechanisms of disease resistance.

Mallard ducks are permissive to LPAI replication in their intestinal tissues without overtly compromising their fitness. NATURE 15/08/18 Characterization of avian influenza virus attachment patterns to human and pig tissues. Vet. Sci. 2018, 5(1), 23; Avian Respiratory Coinfection and Impact on Avian Influenza Pathogenicity in Domestic Poultry: Field and Experimental Findings. VIRUSES 13/02/18 The Application of NHEJ-CRISPR/Cas9 and Cre-Lox System in the Generation of Bivalent Duck Enteritis Virus Vaccine against Avian Influenza Virus. MDPI and ACS Style Chang, P.; Yao, Y.; Tang, N.; Sadeyen, J.

VIRUSES 13/02/18 The Application of NHEJ-CRISPR/Cas9 and Cre-Lox System in the Generation of Bivalent Duck Enteritis Virus Vaccine against Avian Influenza Virus

-R.; Sealy, J.; Clements, A.; Bhat, S.; Munir, M.; Bryant, J.E.; Iqbal, M. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 13/12/17 Molecular Markers for Interspecies Transmission of Avian Influenza Viruses in Mammalian Hosts. PEERJ 13/12/17 Evaluating the role of wild songbirds or rodents in spreading avian influenza virus across an agricultural landscape.

Sci Rep. 2017; 7: 7187. Mutations Driving Airborne Transmission of A/H5N1 Virus in Mammals Cause Substantial Attenuation in Chickens only when combined. TRACIE 06/10/17 Avian Influenza (Including Asian H7N9): Resources at Your Fingertips. EFSA 16/10/17 Mechanisms and risk factors for mutation from low to highly pathogenic avian influenza virus. HOKKAIDO UNIVERSITY 23/03/17 Thèse en ligne: Studies on the control of avian influenza virus infections in poultry and humans. UWMedicine VIA YOUTUBE 11/11/11 Adventures with Avian Influenza: A Wildlife Disease Gone Global. Vet Res. 2014; 45(1): 118. Highly pathogenic avian influenza virus infection in chickens but not ducks is associated with elevated host immune and pro-inflammatory responses. FRONTIERS IN MICROBIOLOGY 06/05/16 Pathogenicity, Transmission and Antigenic Variation of H5N1 Highly Pathogenic Avian Influenza Viruses.

Introduction.

FRONTIERS IN MICROBIOLOGY 06/05/16 Pathogenicity, Transmission and Antigenic Variation of H5N1 Highly Pathogenic Avian Influenza Viruses

Journal of Language and Politics, - 2010 - Bird flu hype: the spread of a disease outbreak through the media and Internet discussion groups. Virus Research Volume 199, 2 March 2015, Identification of morphological differences between avian influenza A viruses grown in chicken and duck cells. Open Access Highlights Chicken cells produce spherical while duck cells produce short filament virions.

Virus Research Volume 199, 2 March 2015, Identification of morphological differences between avian influenza A viruses grown in chicken and duck cells

Reduced infectious virus from duck cells is correlated with altered virus morphology.

Références PLOS

BMC 26/06/15 Avian influenza virus exhibits distinct evolutionary dynamics in wild birds and poultry. Influenza A viruses infect a wide range of animals including humans, pigs, horses, and poultry. However, with the exception of a small number of viruses recently described in bats [1],[2], wild (water) birds are the natural reservoir for all haemaggluttinin (H) and neuraminidase (N) subtypes, harbouring 16 of the former and 9 of the latter [3]-[5]. With approximately 10,000 bird species present in terrestrial and aquatic environments, the often large sizes and densities of bird populations are a boon for the spread of infectious diseases such as influenza. Air Water Borne Diseases 2015, 4:1 Potential Role of Fresh Water Apple Snails on H5N1 Influenza Virus Persistence and Concentration in Nature. UNIVERSITE GUISSEN - 2011 - Thèse en ligne : PERSISTENCE OF H4N6, H5N1, AND H6N8 AVIAN INFLUENZA VIRUSES, H1N1 HUMAN INFLUENZA VIRUS, AND TWO MODEL VIRUSES (NDV AND ECBO) IN VARIOUS TYPES OF WATER, LAKE SEDIMENT, DUCK FECES, AND MEAT.

BIOMEDICAL JOURNAL 10/02/14 Avian influenza A virus infection in humans. Avian influenza A virus infection in humans Guang-Wu Chen1, Shin-Ru Shih2 1 Research Center for Emerging Viral Infections, College of Medicine; Department of Computer Science and Information Engineering, School of Electrical and Computer Engineering, College of Engineering, Chang Gung University, Taoyuan, Taiwan2 Research Center for Emerging Viral Infections; Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan; Clinical Virology Laboratory, Department of Clinical Pathology, Chang Gung Memorial Hospital at Linkou, Taiwan Correspondence Address:Shin-Ru ShihResearch Center for Emerging Viral Infections, College of Medicine, Chang Gung University. 259 Wenhua 1st Rd., Gueishan, Taoyuan 333 Taiwan Influenza is a highly contagious, acute, and febrile respiratory illness that occurs in epidemics every winter and occasionally in pandemics.

The disease is caused by the influenza virus, which belongs to the family Orthomyxoviridae. Preventive Veterinary Medicine Volume 113, Issue 4, 1 March 2014, Using quantitative disease dynamics as a tool for guiding response to avian influenza in poultry in the United States of America. Open Access Abstract Wild birds are the primary source of genetic diversity for influenza A viruses that eventually emerge in poultry and humans.

Much progress has been made in the descriptive ecology of avian influenza viruses (AIVs), but contributions are less evident from quantitative studies (e.g., those including disease dynamic models). Transmission between host species, individuals and flocks has not been measured with sufficient accuracy to allow robust quantitative evaluation of alternate control protocols. We focused on the United States of America (USA) as a case study for determining the state of our quantitative knowledge of potential AIV emergence processes from wild hosts to poultry. Preventive Veterinary Medicine Volume 116, Issues 1–2, 1 September 2014, Development of an active risk-based surveillance strategy for avian influenza in Cuba.

UNIVERSITEIT GENT - 2014 - The transmission of H5 and H7 law pathogenic avian influenza virus. PLOS 27/07/07 Detecting Emerging Transmissibility of Avian Influenza Virus in Human Households. Abstract Accumulating infections of highly pathogenic H5N1 avian influenza in humans underlines the need to track the ability of these viruses to spread among humans. A human-transmissible avian influenza virus is expected to cause clusters of infections in humans living in close contact. Therefore, epidemiological analysis of infection clusters in human households is of key importance. Infection clusters may arise from transmission events from (i) the animal reservoir, (ii) humans who were infected by animals (primary human-to-human transmission), or (iii) humans who were infected by humans (secondary human-to-human transmission). ‪AVIA PATHOLOGY - 2013 - Differences in highly pathogenic avian influenza viral pathogenesis and associated early inflammatory response in chickens and ducks.

RIVM - 2005 - Quantitative risk assessment of avian influenza virus infectino via water. PLOS 11/11/14 Transfer of Maternal Antibodies against Avian Influenza Virus in Mallards (Anas platyrhynchos) Maternal antibodies protect chicks from infection with pathogens early in life and may impact pathogen dynamics due to the alteration of the proportion of susceptible individuals in a population. We investigated the transfer of maternal antibodies against avian influenza virus (AIV) in a key AIV host species, the mallard (Anas platyrhynchos). Combining observations in both the field and in mallards kept in captivity, we connected maternal AIV antibody concentrations in eggs to (i) female body condition, (ii) female AIV antibody concentration, (iii) egg laying order, (iv) egg size and (v) embryo sex. We applied maternity analysis to the eggs collected in the field to account for intraspecific nest parasitism, which is reportedly high in Anseriformes, detecting parasitic eggs in one out of eight clutches.

AIV antibody prevalence in free-living and captive females was respectively 48% and 56%, with 43% and 24% of the eggs receiving these antibodies maternally. Figures Introduction. Rev. Bras. Cienc. Avic. vol.14 no.2 Campinas Apr./June 2012 An overview on avian influenza. UNIVERSITY OF MELBOURNE - DEC 2011 – Thèse en ligne : Characterisation of the chicken and duck response to H5N1 avian influenza.

Viruses, Vol. 5, 2013: Avian Influenza: Mixed Infections and Missing Viruses. UNIVERSITY OF DENMARK - MARS 2011 - Thèse en ligne : Rapid detection of Avian Influenza Virus - Towards point of care diagnosis. Bird flu or Avian flu is an infectious disease caused by an influenza A virus of the Orthomyxoviridae family. Avian influenza virus (AIV) causes significant economic losses to the poultry industry worldwide and threatens human life with a pandemic.

Pandemic of AIV is the human infection caused by the appearance of a “new” influenza virus as a result of antigenic shift or antigenic drift. Several outbreaks of AIV caused by the rapid spread of infection have been identified. Therefore, there is an urgent need for rapid diagnostic methods that would enable early detection and improve measurements to control the AIV outbreak. J Infect Dev Ctries 2011; 5(8):565-570. Prevalence of infectious bronchitis and Newcastle disease virus among domestic and wild. Clin Infect Dis. (2012) H5N1 Avian Influenza in Children. + Author Affiliations. Virology Journal 2009, 6:74 Identification and characterisation of a novel anti-viral peptide against avian influenza virus H9N2. Selection of peptides that interact with AIV Peptides selected from phage display library have been used as effective anti-microbial agents in previous studies [19].

In this study, a 7-mer constrained phage displayed random peptide library containing about 3.7 × 109 different recombinant bacteriophages were used to select ligands that interact with the purified target molecule, AIV subtype H9N2. Four rounds of panning were carried out, each with a slight increase in stringency to isolate high-affinity peptide ligands. Table 1 shows the heptapeptide sequences obtained from four rounds of panning the peptide library against AIV subtype H9N2. Seventeen out of 35 phages analysed from the fourth round represented the sequence NDFRSKT and other major sequences found in the final round of panning were LPYAAKH and ILGDKVG. Table 1. Virology Journal 2012, 9:106 PA from an H5N1 highly pathogenic avian influenza virus activates viral transcription and replicati. VETERINARY WORLD 1 (4). pp. 122-125 - 2008 - Avian influenza infection in human.

Mohan, M.; Fernandez, Trevor Francis and Feroz Mohammed, M.S. (2008) Avian influenza infection in human.Veterinary World, 1 (4). pp. 122-125. ISSN 0972-8988. UNIVERSITY OF LOUISVILLE - SURVIVING THE NEXT PANDEMIC: BIRD FLU & OTHER EMERGING INFECTIOUS DISEASES - ONLINE COURSE. CME & PD Mission. Rad. Medical sciences, Vol. No. 496=30 Au sommaire: Bird Flu. Birds, just like people, get the flu. Bird flu viruses infect birds, including chickens, other poultry, and wild birds such as ducks. Most bird flu viruses can only infect other birds. However, bird flu can pose health risks to people. J. bras. pneumol. vol.31 no.5 São Paulo Sept./Oct. 2005 Avian influenza A (H5N1) - the bird flu. Fuller et al. BMC Infectious Diseases 2010, 10:187 Mapping the risk of avian influenza in wild birds in the US.

Influenza Report 2006 is a medical textbook that provides a comprehensive overview of epidemic and pandemic influenza. Access to. AED - Avian and Pandemic Influenzas Resource Link.

Références MBIO

Braz J Infect Dis vol.11 no.1 Salvador Feb. 2007 Au sommaire: H5N1 avian influenza virus: an overview.