and , closely related bacterial species within the genus, present a challenge in classification and diagnosis due to their close genetic proximity and overlapping phenotypic features. Moreover, our understanding of the virulence mechanisms in staphylococcal species, beyond the extensively studied , remains limited, underscoring the importance of using comparative data to enhance our insights into virulence within these bacterial species. This study employed a comprehensive approach, utilizing comparative genomics, to identify genomic distinctions between and , aiming to address the challenges in the accurate classification and diagnosis of these organisms and identify unique features.
View Article and Find Full Text PDFcauses ungulate morbidity and mortality in eastern and central North America, but no reference genome sequence exists to facilitate research. Here, we present a genome assembly and annotation, generated with PacBio and Illumina technologies. The assembly is 491 Mbp, with 7285 scaffolds and 185 kb N50.
View Article and Find Full Text PDFStaphylococcus schleiferi and Staphylococcus coagulans are opportunistic pathogens of animals and humans. They were previously classified as Staphylococcus schleiferi subs. schleiferi and Staphylococcus schleiferi subs.
View Article and Find Full Text PDFStaphylococcus pseudintermedius is an important cause of clinical infections in small-animal-veterinary medicine. Evolutionary changes of strains using multilocus sequence typing (MLST) have been observed among S. pseudintermedius in European countries and the United States.
View Article and Find Full Text PDFThe aim of this study was to perform a phenotypic and molecular epidemiological survey to determine temporal changes in the antimicrobial resistance and population structure of methicillin-resistant Staphylococcus pseudintermedius (MRSP) in the United States. Samples from 200 S. pseudintermedius isolates were obtained from veterinary diagnostic facilities located in geographic regions sampled approximately ten years ago and compared to samples obtained in 2021.
View Article and Find Full Text PDFThis paper outlines methods used to identify novel antigens for use in the development of serological assays. Specifically, we applied these methods to a neurogenic parasitic nematode of cervids called Parelaphostrongylus tenuis. This parasite is of particular concern in both wild and domestic ungulates as it causes significant neurological signs and definitive diagnosis is only possible post-mortem, necessitating the development of serologic assays for antemortem diagnosis.
View Article and Find Full Text PDFFoods that contain antibiotic residues have potential adverse health effects on consumers and provide selective pressure for the threat of antimicrobial resistance (AMR). This study's objective was to measure tetracycline, sulfonamide, and erythromycin residues in beef, eggs, and honey sold as "antibiotic-free" at farmers' markets in East Tennessee (East TN) in the United States (U.S.
View Article and Find Full Text PDFBackground: Understanding drivers of multidrug resistance (MDR) and methicillin resistance, which have increased among canine staphylococcal isolates, is essential for guiding antimicrobial use practices. Therefore, the objective of this study was to identify predictors of MDR and methicillin resistance among spp. commonly isolated from canine clinical specimens.
View Article and Find Full Text PDFRespiratory syncytial virus (RSV) is the leading cause of respiratory illness in ruminants and infants. The G glycoprotein of RSV serves as the viral attachment ligand. Despite currently available vaccines, RSV immunity is insufficient, and re-infections occur.
View Article and Find Full Text PDFWe report here the genome sequences of 11 canine Staphylococcus pseudintermedius isolates from New York, New Hampshire, California, Pennsylvania, and Kansas. The sequencing information will enable spatial phylogenetic comparisons of staphylococcal species and other related species and will help in better understanding their virulence potential.
View Article and Find Full Text PDF(SA) is a significant and well-recognized causative organism of bacterial osteomyelitis. Osteomyelitis is an inflammatory bone disease characterized by progressive bone destruction and loss. This disease causes significant morbidity and mortality to the patient and poses therapeutic challenges for clinicians.
View Article and Find Full Text PDFBackground: Demodex gatoi is a contagious ectoparasite that causes pruritic dermatitis in otherwise healthy cats. The diagnosis of this mite can be difficult, and its prevalence is unknown.
Objectives: The goal of this study was to identify the prevalence of D.
In late 2019, a novel coronavirus began circulating within humans in central China. It was designated SARS-CoV-2 because of its genetic similarities to the 2003 SARS coronavirus (SARS-CoV). Now that SARS-CoV-2 has spread worldwide, there is a risk of it establishing new animal reservoirs and recombination with native circulating coronaviruses.
View Article and Find Full Text PDFBackground: Mycobacteria are found in many environmental conditions and infect a variety of species, including rodents and rabbits. Guinea pigs are used experimentally as a model for Mycobacterium tuberculosis, but natural mycobacteriosis in guinea pigs has not been reported.
Case Presentation: A 1.
Background: Multidrug- and methicillin-resistant staphylococci are both veterinary and public health concerns due to their zoonotic potential. Therefore, the objective of this study was to investigate patterns of antimicrobial, multidrug, and methicillin resistance among four Staphylococcus spp. commonly isolated from canine clinical specimens submitted to the Clinical Bacteriology Laboratory at the University of Tennessee College of Veterinary Medicine (UTCVM).
View Article and Find Full Text PDFInt J Syst Evol Microbiol
August 2020
Six strains were isolated from healthy black bears () in the Great Smoky Mountains National Park, Tennessee, USA. Phylogenetic analysis based on complete genome, 16S rRNA, , , and genes, and MALDI-TOF-MS main spectral profiles revealed that the strains belonged to one species and showed the closest relatedness to members of the ' group' (SIG), which include , and . The strains were positive in SIG-specific and negative in individual species-specific PCR assays for the gene.
View Article and Find Full Text PDFStaphylococcus pseudintermedius is a major opportunistic bacterial pathogen and the leading cause of pyoderma in dogs. In canines it is also often associated with infections of the urinary system and wounds and occasionally infects people. Widespread antimicrobial resistance has made the development of alternative treatments a high priority.
View Article and Find Full Text PDFTwo methods for delivering a canarypox-vectored canine distemper vaccine to tigers () and domestic cats () were investigated. Eight tigers were divided randomly into two vaccination groups: subcutaneous injection or topical tonsillar application. Each tiger received 2 ml of canine distemper virus (CDV) vaccine (Merial Ferret Distemper Vaccine).
View Article and Find Full Text PDFStaphylococci have evolved numerous strategies to evade their hosts' immune systems. Some staphylococcal toxins target essential components of host innate immunity, one of the two main branches of the immune system. Analysis of the Staphylococcus pseudintermedius secretome using liquid chromatography mass spectrometry guided by genomic data, was used to identify an S.
View Article and Find Full Text PDFThe success of staphylococci as pathogens has been attributed, in part, to their ability to evade their hosts' immune systems. Although the proteins involved in evasion have been extensively studied in staphylococci affecting humans little characterization has been done with Staphylococcus pseudintermedius, an important cause of pyoderma in dogs. Staphylococcus aureus binder of immunoglobulin (Sbi) interferes with innate immune recognition by interacting with multiple host proteins.
View Article and Find Full Text PDFThe Staphylococcus intermedius group is a collection of coagulase-positive staphylococci composed of 5 members, including Staphylococcus pseudintermedius, a zoonotic pathogen often associated with exposure to dogs, and Staphylococcus delphini, which has not previously been recovered from humans. Here, we describe the first human case of S. delphini infection.
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