Introduction: When pathogens become airborne, they travel associated with particles of different size and composition. Particle size determines the distance across which pathogens can be transported, as well as the site of deposition and the survivability of the pathogen. Despite the importance of this information, the size distribution of particles bearing viruses emitted by infectious animals remains unknown. In this study, we characterized the concentration and size...
Introduction: Surveillance systems are critical for accurate and timely monitoring and effective disease control. The use of statistical quality control methods for monitoring endemic diseases which are part of compulsory surveillance programs has not been previously explored. It is important to monitor changes of for instance disease prevalence, which might indicate disease spread. Thus allowing control efforts to be triggered immediately. Materials and...
John Carr (Apiam Animal Health/James Cook University) talks about perimeter fences and the minimal biosecurity requirements, during this Swine It interview with host Laura Greiner....
Introduction: Intervention to a PED break includes initiating a multi-facet program focusing on a planned whole herd exposure, biosecurity and sanitation protocol with the goal of PED elimination. There is no literature following a group of individual sows and gilts over a years’ time to measure fecal shedding, antibody levels and impact on performance. The objectives of this project were to evaluate: 1) Duration of shedding in individual sows 2) Individual sow antibody...
Lisa Becton (National Pork Board) talks about the painful experience of Porcine Epidemic Diarrhea (PED), as well as the improvements made and the measures taken, during this Swine It interview with host Laura Greiner....
Paul Yeske and Ryan Strobel (Swine Vet Center) discuss the obligation of containment when there are positive cases and the measures to take, during this Swine It interview with host Laura Greiner....
Lisa Becton (National Pork Board) comments on the inspection of feed and different areas of risk, during this Swine It interview with host Laura Greiner....
Paul Yeske (Swine Vet Center) talks about control programs and the three stages where the risk should be minimized, during this Swine It interview with host Laura Greiner....
Giovani Trevisan (Iowa State University) commented on some precautions and biosecurity measures to stop the spread of this disease, during this Swine It interview with host Laura Greiner....
Giovani Trevisan (Iowa State University) discussed recent activity and good signs regarding these diseases, during this Swine It interview with host Laura Greiner....
Introduction: Food-borne disease caused by Salmonella spp. is an important public health problem. The antimicrobial resistance causes failure of regular therapy and increases the cost of treatment. Salmonella-free carcasses at the slaughterhouse may not happen because there are many stages where workers, liver, intestine, and pig carcasses can be contaminated.Food-borne disease caused by Salmonella spp. is an important public health problem. The antimicrobial resistance causes...
Introduction: Salmonella is a major food safety hazard applied to one health. Salmonella infection in pig farms may lead to health problems for farm workers, visitors and consumers of farm produce. In this study, prevalence of Salmonella spp. isolated from workers and pigs at farms at Nong-BuaLumphu province, Northeastern of Thailand was determined and antimicrobial susceptibility was assessed. Materials and Methods: A total of 123 samples from workers and...
Introduction: Porcine reproductive and respiratory syndrome (PRRS) and porcine epidemic diarrhea (PED) viruses are airborne pathogens able to spread rapidly regionally. Despite this evidence, the information on the size of particles with which airborne viruses are associated while airborne in the field is limited. This association will determine the virus contribution to the airborne route, will help to explain the in between-farm transmission, as well as the...
Introduction: Over the last 15 years, genetically and antigenically distinct groups of influenza A viruses in swine (IAV-S) have emerged. The 2009 pandemic H1N1 virus and variant H3N2 viruses of swine-origin underscore the threat that IAV-S pose to public health. Consequently, there is greater need for increased IAV-S surveillance globally. This is particularly important in regions where there is very little historical sequence data available. In this study, IAV-S surveillance...
Introduction: The use of antibiotic drugs in food producing animals is considered to be a major risk factor for selection of antimicrobial resistance in humans as well as in animals. All antibiotics used in veterinary medicine are closely related to the antibiotics used in human medicine and may induce cross-resistance. Hence, minimizing antibiotic usage and prudent use of antibiotics are two key points to minimize the development of antibiotic resistance. Antibiotics...
Introduction: The acquisition of replacement gilts represents the main risk for the introduction of the disease to negative farms, or in this case, for the introduction of new virus variants to positive farms. The possibility of boars transmitting PRRS is important even when the animal does not show signs of the disease after infection. Objective: To determine the health status of replacement gilts and boars used for natural mating or semen donors regarding...
Introduction: This project is to first in Alberta and western Canada to eradicate PRRS from 3 adjoining counties with endemic PRRS infection problems from small continuous flow farms as well as multisite operations, and pursue the understanding of the economics of before and after PRRS positive status. We initially established that 13 of 25 sites were PRRS positive. We have now successfully eradicated PRRS in all of participating locations. Materials and...
Introduction: Italy is a large pig producer and a system to monitor active ingredients (AIs) consumptions of veterinary medicinal products (VMPs) at farm level is needed. The aims of this study were to develop a tool to record these consumptions and to compare AIs usages with production losses, biosecurity levels and health statuses. Materials and Methods: A data collection software, an XML database and an interactive dashboard were developed...
Ten research projects have been funded as part of the Swine Health Information Center’s Wean-to-Harvest Biosecurity Program in collaboration with the Foundation for Food & Agriculture Research and the Pork Checkoff. Each project is designed to achieve the objectives of cost-effective, innovative solutions for a significant biosecurity gap in U.S. swine production. Institutions receiving awards in this first round of funding are Iowa State University, Carthage Veterinary Service,...
The Swine Health Information Center seeks a second round of research proposals to investigate cost-effective and innovative technologies, protocols, or ideas to enhance biosecurity during the wean-to-harvest phase of pig production, due April 28, 2023. Funding for the selected proposals will be provided by SHIC, the Foundation for Food & Agriculture Research, and Pork Checkoff as part of SHIC’s Wean-to-Harvest Biosecurity Program to be implemented over 2023-2024. The first round of...