Publications by authors named "S A Headley"
Article Synopsis
- SA-MCF is a serious disease in cattle caused by OvGHV2, with a global presence and potential reservoirs in wild boars.
- Previous detection methods for MCF used a CI-ELISA based on a specific antigen, but this study tested a new indirect ELISA specific to OvGHV2 antibodies in dairy cattle from Southern Brazil.
- The results showed that nearly 38% of farms had at least one seropositive cow, with intensified farming systems showing a significantly higher risk for seropositivity, suggesting a link between environmental factors and disease prevalence.
Objective: This study was designed to determine the effect of 16 weeks of supplementation with Hi-maize 260 resistant starch (RS) on the gut microbiota, uremic toxins (indoxyl sulfate and p-cresyl sulfate [PCS]), markers of inflammation, and oxidative stress along with vascular function in patients with stage G3a-G4 chronic kidney disease (CKD).
Design And Methods: This was a double-blind, placebo-controlled, parallel-arm, randomized controlled trial. Sixty-eight patients with stage-G3a-G4 CKD were randomized to either RS with usual care or placebo and usual care.
Although there are several studies that described the possible participation of Mycoplasmopsis bovirhinis (formerly, Mycoplasma bovirhinis) in respiratory disease in calves worldwide, none of these evaluated the effects of concomitant infections on the shedding of this organism. Accordingly, this study evaluated the effects of simultaneous respiratory infections in dairy calves on the nasal shedding of M. bovirhinis.
View Article and Find Full Text PDFPorcine astrovirus 3 RNA in the central nervous system of weaned pigs with neurologic disease and polioencephalomyelitis in Brazil.
Microb Pathog
November 2024
Article Synopsis
- * Three piglets, aged 20-35 days old, were examined post-mortem after showing signs of neurological disease, leading to the identification of significant damage in the grey matter of their spinal cords and brainstems.
- * This marks the first documented case of PAstV3 in piglets with neurological disorders in Brazil, emphasizing the need for continued monitoring of health issues that could affect pig farming efficiency and animal welfare.
The genus, subfamily, family, contains ovine gammaherpesvirus 2 (OvGHV2), the cause of sheep-associated malignant catarrhal fever (SA-MCF). Members of the genus associated with the development of malignant catarrhal fever (MCF) in their respective hosts share the 15A antigenic epitope, are conserved within the DNA polymerase gene and are collectively referred to as the malignant catarrhal fever virus (MCFV) complex. The ability of MCFV and/or OvGHV2 to produce abortions in ruminants is currently unknown, with little documentation of infections by these agents in bovine fetuses.
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