Publications by authors named "Sara M Klose"

Coinfections are known to play an important role in disease progression and severity. Coinfections are common in cats, but no coinfection studies have investigated the dynamics between feline viral and bacterial pathogens. In this study, we performed co-culture and invasion assays to investigate the ability of common feline bacterial respiratory pathogens, and , to replicate in and invade into Crandell-Rees feline kidney cells.

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We provide an overview of the expanding literature on the role of cytokines and immune mediators in pathophysiology of age-related macular degeneration (AMD). Although many immunological mediators have been linked to AMD pathophysiology, the broader mechanistic picture remains unclear with substantial variations in the levels of evidence supporting these mediators. Therefore, we reviewed the literature considering the varying levels of supporting evidence.

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has been isolated from diseased cats and horses, but to date only a single fully assembled genome of this species, of an isolate from a horse, has been characterized. This study aimed to characterize and compare the completely assembled genomes of four clinical isolates of from three domestic cats, assembled with the aid of short- and long-read sequencing methods. The completed genomes encoded a median of 759 ORFs (range 743-777) and had a median average nucleotide identity of 98.

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A domestic short hair cat () suffering from a purulent wound infection resulting from a dog bite was sampled for bacterial culture and isolation as the wound had been unresponsive to prolonged antimicrobial treatment. A mycoplasma was isolated from the wound. Whole genome sequencing of the isolate was performed using short-read Illumina and long-read Oxford Nanopore chemistry, and the organism was identified as .

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The MS-H vaccine strain (Vaxsafe MS®; Bioproperties Pty. Ltd., Australia) is a live attenuated temperature sensitive derivative of a virulent strain of M.

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The live attenuated temperature sensitive vaccine strain MS-H (Vaxsafe® MS, Bioproperties Pty. Ltd., Australia) is widely used to control disease associated with M.

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Infections caused by are major welfare and economic concerns in poultry industries worldwide. These infections cause chronic respiratory disease and/or synovitis in chickens and turkeys leading to reduced production and increased mortality rates. The live attenuated vaccine strain MS-H (Vaxsafe MS), commonly used for protection against infection in many countries, contains 32 single nucleotide variations compared to its wildtype parent strain, 86079/7NS.

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Article Synopsis
  • The Mycoplasma synoviae live attenuated vaccine strain MS-H (Vaxsafe MS) is widely used globally to protect chickens from chronic M. synoviae infections and reduce economic losses in the poultry industry.
  • MS-H, developed through chemical mutagenesis of a virulent strain, has 32 single nucleotide variations compared to its original strain, with questions remaining about the stability of these mutations during vaccine production and after vaccination.
  • A study of 11 laboratory passages and 138 bird reisolates identified 254 sequence variations in the MS-H genome, revealing that certain regions may be more prone to mutations, although the overall occurrence of significant mutations remains infrequent.
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Mycoplasmas are important animal pathogens, but the functions and roles of many of their genes in pathogenesis remain unclear, in large part because of the limited tools available for targeted mutagenesis in these bacteria. In this study we used the Mycoplasma gallisepticum CRISPR/Cas system to target a nuclease gene, MGA_0637 (mnuA), which is predicted to play a role in survival and virulence. Our strategy used simultaneous targeting of the ksgA kasugamycin resistance gene, as a mutation in this gene would not interfere with replication but would confer a readily detectable and selectable phenotype in transformants.

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