Sara E. Gragg
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View article: Summarizing the Current knowledge and Existing Knowledge Gaps for Preharvest and Postharvest Salmonella Contamination in Pork
Summarizing the Current knowledge and Existing Knowledge Gaps for Preharvest and Postharvest Salmonella Contamination in Pork Open
Pork production is one of the most important industries in the world, and ensuring safety in the production chain is crucial for public health. Salmonella presence in pigs and pork products is a significant challenge within the pork indust…
View article: Susceptibility of bovine respiratory and mammary epithelial cells to avian and mammalian derived clade 2.3.4.4b H5N1 highly pathogenic avian influenza viruses
Susceptibility of bovine respiratory and mammary epithelial cells to avian and mammalian derived clade 2.3.4.4b H5N1 highly pathogenic avian influenza viruses Open
Zoonotic transmission of avian influenza viruses into mammals is relatively rare due to anatomical differences in the respiratory tract between species. Recently, clade 2.3.4.4b highly pathogenic H5N1 avian influenza viruses were detected …
View article: Salmonella Prevalence and Quantification in Market Hog Lymph Nodes and Tonsils in Several Regions and Seasons of the United States
Salmonella Prevalence and Quantification in Market Hog Lymph Nodes and Tonsils in Several Regions and Seasons of the United States Open
Market hog lymph nodes (LNs) can contaminate carcasses with Salmonella, as well as ground and comminuted pork products. The objective of this study was to perform a qualitative and quantitative analysis of LNs from several regions and seas…
View article: Peroxyacetic Acid and Chlorine Reduce Escherichia coli in Agricultural Surface Water for Potential Produce Postharvest Uses
Peroxyacetic Acid and Chlorine Reduce Escherichia coli in Agricultural Surface Water for Potential Produce Postharvest Uses Open
An increase in foodborne illnesses associated with fruits and vegetables has been observed in recent years, with several outbreaks linked to contaminated agricultural water. The effectiveness of peroxyacetic acid (PAA) and chlorine (Cl) at…
View article: Modernization Data Analysis and Visualization for Food Safety Research Outcomes
Modernization Data Analysis and Visualization for Food Safety Research Outcomes Open
Appropriate data collection and using reliable and accurate procedures are the first steps in conducting an experiment that will provide trustworthy outcomes. It is key to perform an assertive statistical analysis and data visualization fo…
View article: Reduction of <i>Escherichia coli</i> O157:H7 in Finishing Cattle Fed Corn Genetically Modified to Produce Increased Concentrations of Alpha Amylase in the Corn Kernel
Reduction of <i>Escherichia coli</i> O157:H7 in Finishing Cattle Fed Corn Genetically Modified to Produce Increased Concentrations of Alpha Amylase in the Corn Kernel Open
Cattle are recognized as the principal reservoir for Escherichia coli O157:H7 and preharvest food safety efforts often focus on decreasing shedding of this pathogen in cattle feces. Enogen® corn (EC; Syngenta Seeds, LLC) is genetically mod…
View article: Impact of the Probiotic Organism Megasphaera elsdenii on Escherichia coli O157:H7 Prevalence in Finishing Cattle
Impact of the Probiotic Organism Megasphaera elsdenii on Escherichia coli O157:H7 Prevalence in Finishing Cattle Open
Feedlot cattle commonly shed the foodborne pathogen Escherichia coli O157:H7 in their feces. Megasphaera elsdenii (ME), a lactic acid-utilizing bacterium, is commonly administered to cattle to avoid lactate accumulation in the rumen and to…
View article: Validation of commercial antimicrobial intervention technologies to control Salmonella on skin-on market hog carcasses and chilled pork wholesale cuts
Validation of commercial antimicrobial intervention technologies to control Salmonella on skin-on market hog carcasses and chilled pork wholesale cuts Open
Pork substantially contributes to salmonellosis, and processors are increasingly interested in antimicrobials. This study applied antimicrobials using commercial equipment and parameters to reduce Salmonella in pork. Skin-on carcasses inoc…
View article: Rapid Quantitative Method Development for Beef and Pork Lymph Nodes Using BAX® System Real Time Salmonella Assay
Rapid Quantitative Method Development for Beef and Pork Lymph Nodes Using BAX® System Real Time Salmonella Assay Open
The goal of this study was to develop a rapid RT-PCR enumeration method for Salmonella in pork and beef lymph nodes (LNs) utilizing BAX®-System-SalQuant® as well as to assess the performance of the methodology in comparison with existing o…
View article: Determining the Impact of Probicon L28 and BioPlus 2B on Finishing Pig Growth Performance and Carcass Characteristics
Determining the Impact of Probicon L28 and BioPlus 2B on Finishing Pig Growth Performance and Carcass Characteristics Open
These data represent the growth performance of pigs enrolled in a study to determine the impact of two direct fed microbial products onSalmonellaandEscherichiacoli prevalence pre- and post-harvest. A total of 650 finishing pigs in two grou…
View article: Exploring the Use of Probicon L28 and BIOPLUS 2B as Direct-Fed Microbials to Reduce Salmonella and Shiga Toxin-Producing Escherichia coli in Market Pigs
Exploring the Use of Probicon L28 and BIOPLUS 2B as Direct-Fed Microbials to Reduce Salmonella and Shiga Toxin-Producing Escherichia coli in Market Pigs Open
Pigs are hosts forSalmonellaand Shiga toxin-producingEscherichia coli(STEC) and these pathogens can commonly be isolated from the pig farm environment. Pigs can carry pathogens to the abattoir and contaminate pork products, posing a risk t…
View article: Evaluation of Peroxyacetic Acid and Chlorine as Treatments for Surface Water for Post-Harvest Uses in the Produce Industry
Evaluation of Peroxyacetic Acid and Chlorine as Treatments for Surface Water for Post-Harvest Uses in the Produce Industry Open
Nearly half of foodborne illnesses are linked to produce and nuts, and water used for produce post-harvest activities can contribute to contamination. Surface water serves as an economical source for agricultural activities; however, expos…
View article: The Use of Probiotic Megasphaera elsdenii as a Pre-Harvest Intervention to Reduce Salmonella in Finishing Beef Cattle: An In Vitro Model
The Use of Probiotic Megasphaera elsdenii as a Pre-Harvest Intervention to Reduce Salmonella in Finishing Beef Cattle: An In Vitro Model Open
Reducing Salmonella in cattle may mitigate the risk of transmission through the food chain. Megasphaera elsdenii (ME) is a microorganism found naturally in the bovine rumen that can be administered as a probiotic to mitigate ruminal acidos…
View article: Prevalence of Escherichia coli in a Swine Nursery Facility Pre- and Post-Disinfection
Prevalence of Escherichia coli in a Swine Nursery Facility Pre- and Post-Disinfection Open
During the spring of 2021, the Kansas State University Swine Early Wean Facility (SEW) experienced a notable increase in piglet morbidity and mortality. Piglet diarrhea was observed approximately 2 to 3 weeks post-weaning along with an inc…
View article: Attachment of Shiga Toxin-Producing Escherichia coli (STEC) to Pre-Chill and Post-Chill Beef Brisket Tissue
Attachment of Shiga Toxin-Producing Escherichia coli (STEC) to Pre-Chill and Post-Chill Beef Brisket Tissue Open
Shiga toxin-producing Escherichia coli (STEC) has caused numerous foodborne illness outbreaks where beef was implicated as the contaminated food source. Understanding how STEC attach to beef surfaces may inform effective intervention appli…
View article: Genotypic and Phenotypic Characterization of Antimicrobial Resistance Profiles in Non-typhoidal Salmonella enterica Strains Isolated From Cambodian Informal Markets
Genotypic and Phenotypic Characterization of Antimicrobial Resistance Profiles in Non-typhoidal Salmonella enterica Strains Isolated From Cambodian Informal Markets Open
Non-typhoidal Salmonella enterica is a pathogen of global importance, particularly in low and middle-income countries (LMICs). The presence of antimicrobial resistant (AMR) strains in market environments poses a serious health threat to co…
View article: A Bisulfate of Soda and Peroxyacetic Acid Solution Reduces Salmonella on Fresh-Cut Spinach
A Bisulfate of Soda and Peroxyacetic Acid Solution Reduces Salmonella on Fresh-Cut Spinach Open
Fresh produce is commonly implicated in foodborne illness outbreaks, including outbreaks of Salmonella infection.Chlorine is commonly added to produce wash water to control pathogen cross-contamination in water and is moderately efficaciou…
View article: PSI-5 Effects of Bacillus and Lactobacillus in Milk Replacer on Calf Health
PSI-5 Effects of Bacillus and Lactobacillus in Milk Replacer on Calf Health Open
Stress in pre-ruminant calves can impact the functionality of the gastric epithelial lining, thereby impacting calf health during times of stress and potentially later in life. To mitigate this challenge, milk replacers frequently contain …
View article: 47 Effects of Lactobacillus and Bacillus Probiotics on Pre-ruminating Calf Growth Performance and Efficiency
47 Effects of Lactobacillus and Bacillus Probiotics on Pre-ruminating Calf Growth Performance and Efficiency Open
Lactobacillus and Bacillus probiotics may serve as an alternative to antibiotics in milk replacer for pre-ruminant calves by altering gastrointestinal microflora to prevent the proliferation of harmful bacteria. However, there are limited …
View article: Draft Genome Sequences of 81 Salmonella enterica Strains from Informal Markets in Cambodia
Draft Genome Sequences of 81 Salmonella enterica Strains from Informal Markets in Cambodia Open
Salmonella enterica is an important global pathogen due to its contribution to human morbidity and death. The presence of S. enterica in Southeast Asian informal markets is amplified by cross-contamination between market surfaces and food …
View article: Day-neutral Strawberries for High Tunnel Production in the Central United States
Day-neutral Strawberries for High Tunnel Production in the Central United States Open
Specialty crop production in high tunnel systems has greatly expanded in the central United States. Strawberry ( Fragaria × ananassa ) may be a viable high-value crop for high tunnel growers, but fall-planted production systems have a high…
View article: Videoconferencing Teaching Effectiveness with Students at Multiple Locations
Videoconferencing Teaching Effectiveness with Students at Multiple Locations Open
Drs. Gragg and Collins will discuss the advantages and challenges to utilizing videoconferencing to deliver courses to students at multiple campuses. Several perspectives will be shared, including those of the course instructor, student an…