Today we are sharing a recent publication from the VanderWaal lab looking at PRRSV sequences from Canada. The full publication is available in open access on the journal Pathogens’ website.
Continue reading “Phylogenetic Lineages of Canadian PRRSV-2 Reveal Transboundary Spread and Two Novel Sub-Lineages”Tag: Epidemiology
Recombinants Are the Key Drivers of Recent PRRSV-2 Evolution
The Schroeder’s lab at the University of Minnesota College of Veterinary Medicine recently published a brief report in the journal Pathogens regarding a likely cause of Porcine Reproductive and Respiratory Virus type 2 evolution.
Continue reading “Recombinants Are the Key Drivers of Recent PRRSV-2 Evolution”Swine Practitioner Practices on Oral Fluid Sampling in U.S. Swine Farms: A Nationwide Survey
Today, we are sharing a recent publication from the MSHMP team in the journal Pathogens. This project set out to gather information on how swine veterinarians use oral fluids in the USA through a nationwide survey.
Continue reading “Swine Practitioner Practices on Oral Fluid Sampling in U.S. Swine Farms: A Nationwide Survey”Validation of the effectiveness of pig farm repopulation protocol following African swine fever outbreaks in the Philippines
In this recent publication from the Center of Animal Health and Food Safety, Dr. Hsu presents the protocols put in place in the Philippines to repopulate swine farms after African Swine Fever outbreaks and their success rates.
Continue reading “Validation of the effectiveness of pig farm repopulation protocol following African swine fever outbreaks in the Philippines”Porcine Deltacoronavirus Occurrence in the United States Breeding Herds since Its Emergence in 2014
This week, we are sharing a new publication from the Morrison Swine Health Monitoring Project, led by Dr. Mariana Kikuti, regarding the incidence of Porcine Deltacoronavirus in the United States since 2014. The article is available in open-access on the journal’s website.
Methods
- Porcine Deltacoronavirus (PDCoV) emerged in Feb 2014 as pig farmers and veterinarians were still learning how to manage PEDv.
- MSHMP database comprises more than 60% of the US breeding herds
- Data from Jan 2015 to Dec 2023 was analyzed
- Farms voluntarily self-reported PDCoV status
- An outbreak was defined by clinical signs and increased mortality in piglets as well as a positive PDCoV PCR from affected piglets
Results
- A total of 244 PDCoV outbreaks have been reported to MSHMP (186 sites from 22 production systems in 16 U.S. states)
- Most sites (140/244) reported only one outbreak
- The interval between outbreaks had a median of 2.11 years for sites with more than one outbreak.
- Most cases were found in the South and the Midwest (as described by the US Census regions)
Abstract
PDCoV, an enveloped RNA virus, causes atrophic enteritis in neonatal piglets, leading to diarrhea, malabsorption, dehydration, and death. The study aims to fill the gap in the current epidemiological information about PDCoV in the U.S. pig population after its emergence in 2014. Data from the Morrison Swine Health Monitoring Project (MSHMP) between January 2015 and December 2023 were analyzed, representing approximately 60% of the U.S. breeding herd. Participating herds report weekly PDCoV health status. In total, 244 PDCoV outbreaks occurred in 186 sites from 22 production systems across 16 states. Case counts peaked during winter, and incidence ranged from 0.44% in 2017 to 4.28% in 2023. For sites that experienced more than one PDCoV outbreak during the study period, the interval between outbreaks was a median of 2.11 years. The South and Midwest regions reported the majority of cases. In 2017, a shift in the spatial distribution of cases from the Midwest to the South was observed. The findings underscore the importance of continued monitoring and strengthened control measures to mitigate the impact of PDCoV in U.S. breeding herds