Abstracts - Pig health

Researchers from the IRTA-CReSA in collaboration with researchers from the Erasmus University Medical Center Rotterdam (the Netherlands), studied the susceptibility of different animal species to infection with MERS-CoV.

There is an increasing concern in several European countries over the role that tuberculosis (TB)-infected wild boar may play in the progress of bovine TB eradication campaigns. In Spain, the wild boar is the main wild reservoir of tuberculosis.

Results indicate that B. hyodysenteriae has a high degree of serological heterogeneity that has probably differently developed in diverse geographical areas over time.

The LAMP assay established in this study provides a simple, specific, sensitive and rapid method of T. gondii genomic DNA detection, hence is expected to plays an important role in the monitoring of T. gondii contamination in various food products.

This review summarizes data on the types of occupation-related infections caused by LA-MRSA CC398, the incidence of such infections as well as potential preventive strategies.

The study provided the first known report of clinical lung lesions and endocarditis in piglets due to Staphylococcus sciuri.

This study showed that oral fluid-based testing could provide an easy and “animal-friendly” approach to sample collection for nucleic acid and/or antibody-based surveillance of PEDV in swine populations.

Results from this study can help determine timing of antimicrobial use and contribute to our current understanding of judicious antibiotic use.

Here, a novel porcine circovirus (PCV3) that is distantly related to known circoviruses was identified in sows with porcine dermatitis and nephropathy syndrome (PDNS) and reproductive failure.

Precision engineering for PRRSV resistance in pigs: Macrophages from genome edited pigs lacking CD163 SRCR5 domain are fully resistant to both PRRSV genotypes while maintaining biological function

This work could inform contingency planning that would lead to cost savings in the event of a future FMD outbreak and could also be applied to other infectious diseases.

African swine fever (ASF) is a major pig health problem, and the causative virus is moving closer to Western European regions where pig density is high. Stopping or slowing down the spread of ASF requires mitigation strategies that are both effective and practical.

Feed additives that contained phosphoric acid, citric acid, or fumaric acid were the most effective in reducing virus survival.

We detected a recently discovered pestivirus, termed atypical porcine pestivirus (APPV) in all these cases by RT-PCR.

These studies are the evidences that indirect transmission of PEDV through contaminated personnel, which occurs rapidly, and how fomite material and temperature impact viral stability over time.

We demonstrate the asymptomatic circulation of IAV-S in the Vietnamese pig population.

This study was aimed at evaluating the clinical protection, the level of Porcine circovirus type 2 (PCV2) viremia and the immune response (antibodies and IFN-γ secreting cells (SC)) in piglets derived from PCV2 vaccinated sows and themselves vaccinated against PCV2 at different age, namely at 4, 6 and 8 weeks.

The aim of the study was to determine both environmental and infectious factors, influencing occurrence of bacterial enteropathogens in suckling piglets.

The antibody response and pattern of shedding of vaccine virus following vaccination with modified live genotype I or II porcine reproductive and respiratory syndrome virus (PRRSV) vaccines (MLVs) were investigated.

The data present bronchial scraping as an equally effective or even better alternative to bronchoalveolar lavage fluid for detecting main porcine respiratory disease complex agents.

Immune response-related interactions between T. suis and O. dentatum were detected in co-infected pigs. These interactions reflect an antagonistic effect exerted by T. suis on O. dentatum populations.

The results of this study suggest that metagenomic sequencing is a powerful tool for virus detection and characterization.

Very few studies about the impact of microbial cleaning and administration during production on the environment in animal houses is available. Our results showed that competitive exclusion by probiotic type bacteria is not a valuable alternative for classical C&D.

Of 30 environmental samples collected from a nursery room on our initial visit, 2 (7%) samples yielded 3 isolates: 2 ST 218 Escherichia coli and 1 Proteus mirabilis, carrying the metallo-β-lactamase gene blaIMP-27 on IncQ1 plasmids.