We present the clinical symptoms, pathologic lesions and diagnostic possibilities of the avian astrovirus-related mortality in a pheasant colony. In addition to enteritis in chicks, we also confirmed acute nephrosis. The genome section of the astrovirus was detected and verified by polymerase chain reaction (PCR) testing. After sequencing the isolated genome section based on BLAST driver analysis (601-base pair-long) avian astrovirus has the same ORF-1b gene as turkey astrovirus 1 (TAstV1).
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http://dx.doi.org/10.1556/004.2024.01076 | DOI Listing |
Avian 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 PDFVirus Genes
December 2024
Federal Research Center of Fundamental and Translational Medicine, Timakova Str.2, Novosibirsk, 630117, Russia.
Researchers have identified Avastrovirus as a significant genus of bird viruses, linked to various avian diseases such as enteritis, growth retardation, nephritis and hepatitis. These infections can cause substantial economic losses in agrocultureand have a widespread impact on global food production. Although there have been numerous studies on these viruses, most of them-mainly focuses on poultry.
View Article and Find Full Text PDFFront Microbiol
December 2024
IFREMER, ODE-DYNECO-PELAGOS, Plouzané, France.
Introduction: Seals, protected wild marine mammals, are widely found in waters around the world. However, rising concerns about their increasing numbers in some areas have led to potential worries regarding microbiological contamination of coastal areas by their feces, which could impact bathing and shellfish-harvesting activities. To the best of our knowledge, no study has been conducted on the bacterial and RNA viral communities present in the feces of both grey and harbor seals, which are the two main seal species observed in mainland France and overseas.
View Article and Find Full Text PDFPoult Sci
December 2024
Key Laboratory of Avian Bioproducts Development, Ministry of Agriculture and Rural Affairs, Yangzhou University, Yangzhou 225000, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225000, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou University, Yangzhou 225000, China. Electronic address:
Poult Sci
December 2024
College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China.
Fowl adenovirus serotype 4 (FAdV-4) is the main causative agent of hydropericardium hepatitis syndrome (HHS), which has resulted in huge economic losses to the poultry industry in recent years. Hence, a rapid and simple visual detection method is needed for identification of FAdV-4. In this study, three multienzyme isothermal rapid amplification (MIRA) assays, basic MIRA, MIRA-qPCR and MIRA-LFD were developed for detection of FAdV-4.
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