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Genetic and Molecular Characterization of Avian Influenza A(H9N2) Viruses from Live Bird Markets (LBM) in Senegal.
Viruses
January 2025
Département de Virologie, Institut Pasteur de Dakar, Dakar BP 220, Senegal.
Despite extensive experience with influenza surveillance in humans in Senegal, there is limited knowledge about the actual situation and genetic diversity of avian influenza viruses (AIVs) circulating in the country, hindering control measures and pandemic risk assessment. Therefore, as part of the "One Health" approach to influenza surveillance, we conducted active AIV surveillance in two live bird markets (LBMs) in Dakar to better understand the dynamics and diversity of influenza viruses in Senegal, obtain genetic profiles of circulating AIVs, and assess the risk of emergence of novel strains and their transmission to humans. Cloacal swabs from poultry and environmental samples collected weekly from the two LBMs were screened by RT-qPCR for H5, H7, and H9 AIVs.
View Article and Find Full Text PDFThe Genes of Nigerian Marek's Disease Virus (MDV) Field Isolates Contain Mutations Common to Both European and US High Virulence Strains.
Viruses
December 2024
Department of Biological Sciences, University of Delaware, Newark, DE 19716, USA.
Background: Marek's disease (MD) is a pathology affecting chickens caused by Marek's disease virus (MDV), an acute transforming alphaherpesvirus of the genus . MD is characterized by paralysis, immune suppression, and the rapid formation of T-cell (primarily CD4+) lymphomas. Over the last 50 years, losses due to MDV infection have been controlled worldwide through vaccination; however, these live-attenuated vaccines are non-sterilizing and potentially contributed to the virulence evolution of MDV field strains.
View Article and Find Full Text PDFUltrasound-Assisted Enzymatic Extraction of the Active Components from Stem and Bioactivity Comparison with .
Molecules
January 2025
Key Laboratory of Forest Plant Ecology of Ministry of Education, Northeast Forestry University, Hexing Road 26, Harbin 150040, China.
(ASC) contains a variety of bioactive compounds and serves as an important traditional Chinese medicinal resource. However, its prolonged growth cycle and reliance on wild populations limit its practical use. To explore the potential of (ASF) as an alternative, this study focused on optimizing the extraction process and assessing the bioactivity of stem extracts.
View Article and Find Full Text PDFDevelopment of a Combined 2D-MGD TLC/HPTLC Method for the Separation of Terpinen-4-ol and α-Terpineol from Tea Tree, , Essential Oil.
Biomolecules
January 2025
United States Department of Agriculture-Agricultural Research Service (USDA-ARS), Subtropical Horticulture Research Station (SHRS), Miami, FL 33158, USA.
Tea tree oil (TTO), acquired from (Maiden & Betche) Cheel, Myrtaceae, is a widely utilized essential oil (EO) due to its bioactive properties. The identification and quantification of TTO ingredients is generally performed by GC-MS, which provides the most accurate results. However, in some instances, the cost and time of analysis may pose a challenge.
View Article and Find Full Text PDFPrevalence and partial molecular characterization of Gigantorhynchus echinodiscus in free-ranging anteaters (Myrmecophagidae, Edentata) in Mato Grosso do Sul state, Brazil.
Vet Parasitol Reg Stud Reports
January 2025
Laboratory of Animal Parasitology, Institute of Biosciences, Federal University of Mato Grosso do Sul, Campo Grande, MS 79070-900, Brazil.
The genus Gigantorhynchus comprises six valid species that require a terrestrial arthropod as an intermediate host. Cystacanths of G. echinosdiscus were previously reported infecting termites in Brazil.
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