Publications by authors named "A G McWhorter"
This study evaluated the impact of vaccine diluents (peptone or water) on the protective effects of Typhimurium (. Typhimurium) vaccine. Vaccinated broilers were challenged with different doses of wild-type .
View Article and Find Full Text PDFEnsuring egg safety: Salmonella survival, control, and virulence in the supply chain.
Compr Rev Food Sci Food Saf
January 2025
Salmonella contamination of eggs is a global food safety concern, producers, regulatory authorities, and affecting public health. To mitigate Salmonella risks on-farm and along the supply chain, egg producers have adopted various quality assurance, animal husbandry, and biosecurity practices recommended by organizations such as Australian eggs, the European Commission, and the US Department of Agriculture (USDA). However, egg storage requirements vary significantly worldwide.
View Article and Find Full Text PDFThe culturability of acid-tolerant Salmonella in mayonnaise, a raw egg-based sauce.
Int J Food Microbiol
February 2025
Article Synopsis
- - Salmonella, a common foodborne pathogen, is often found in raw eggs, and safety guidelines suggest using food acids to reduce its presence; however, some strains can become tolerant to acidic environments.
- - This study explored the persistence of acid-tolerant Salmonella strains in mayonnaise versus sensitive strains, using various methods to generate and assess these strains.
- - Results showed that acid-tolerant strains survived longer and formed more biofilms in mayonnaise, indicating that current food safety measures may not be sufficient to eliminate Salmonella effectively.
One of the commonly used methods to control on-farm outbreaks in the poultry industry is vaccination. Vaccine diluents may affect vaccine efficacy but there are limited studies on how different diluents affect the colonization of live, attenuated vaccines. In this study, buffered peptone water, Marek's diluent and water were used as the diluents to reconstitute the commercially available Typhimurium vaccine (Vaxsafe® ST).
View Article and Find Full Text PDFArticle Synopsis
- The report updates the 1999 CDC Framework for Program Evaluation in Public Health to include new advancements and lessons learned in evaluation and public health.
- The 2024 framework introduces a nonprescriptive tool with six steps for effective evaluation planning and implementation, while emphasizing engagement, equity, and learning from insights.
- It serves as a guide for designing evaluations applicable to various programs, enhancing evidence-based decision-making, and improving program outcomes across different areas.