Avian pathogenic Escherichia coli (APEC) is associated with colibacillosis in poultry. Here, we present the first complete sequence of an APEC strain of the O7:HNT serotype and ST73 sequence type, isolated from a broiler with cellulitis. Complete genomes of APEC with distinct genetic backgrounds may be useful for comparative analysis.
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http://dx.doi.org/10.1128/genomeA.01611-15 | DOI Listing |
J Virol
January 2025
Laboratory of Molecular Biophysics, Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden.
Birnaviruses infect a broad range of vertebrate hosts, including fish and birds, and cause substantial economic losses in the fishery and livestock industries. The infectious pancreatic necrosis virus (IPNV), an aquabirnavirus, specifically infects salmonids. While structures on T=1 subviral particles of the birnaviruses, including IPNV, have been studied, structural insights into the infectious T=13 particles have been limited to the infectious bursal disease virus (IBDV), an avibirnavirus.
View Article and Find Full Text PDFAvian Pathol
January 2025
College of Animal Science and Technology/Veterinary Medicine, Anhui Agricultural University, Hefei, PR China.
Goose astrovirus (GoAstV) has emerged as a significant pathogen affecting the goose industry in China, with GoAstV-2 becoming the dominant genotype since 2017. This study explores the genetic and structural factors underlying the prevalence of GoAstV-2, focusing on codon usage bias, spike protein variability, and structural stability. Phylogenetic and effective population size analyses revealed that GoAstV-2 experienced rapid expansion between 2017 and 2018, followed by population stabilization.
View Article and Find Full Text PDFInfect Dis Model
June 2025
Department of Mathematics, University of Trento, Trento, Italy.
West Nile virus (WNV) is one of the most threatening mosquito-borne pathogens in Italy where hundreds of human cases were recorded during the last decade. Here, we estimated the WNV incidence in the avian population in the Emilia-Romagna region through a modelling framework which enabled us to eventually assess the fraction of birds that present anti-WNV antibodies at the end of each epidemiological season. We fitted an SIR model to ornithological data, consisting of 18,989 specimens belonging to Corvidae species collected between 2013 and 2022: every year from May to November birds are captured or shot and tested for WNV genome presence.
View Article and Find Full Text PDFSci Rep
January 2025
The Edgar L. and Harold H. Buttner Chair of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA.
The highly pathogenic avian influenza A(H5N1) virus threatens animal and human health globally. Innovative strategies are crucial for mitigating risks associated with airborne transmission and preventing outbreaks. In this study, we sought to investigate the efficacy of microwave inactivation against aerosolized A(H5N1) virus by identifying the optimal frequency band for a 10-min exposure and evaluating the impact of varying exposure times on virus inactivation.
View Article and Find Full Text PDFJ Appl Microbiol
January 2025
Department of Population Health, College of Veterinary Medicine, 501 D.W. Brooks Dr., University of Georgia, Athens, GA 30602.
Aims: To characterize Escherichia coli O25 ST131 (O25-ST131) isolated from Georgia poultry, - a "global high-risk" clonal strain.
Methods And Results: Using multiplex PCR to detect target genes in 98 isolates of avian pathogenic E. coli (APEC) O25 recovered from avians diagnosed with colibacillosis (n=87) and healthy chicks (n=11) in Georgia, USA.
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