articles about PRRS

Evaluation of an electrostatic precipitator in mitigating the transmission of airborne viruses in experimentally infected pigs

Under the conditions of this study, the electrostatic precipitators efficiently removed IAV aerosol particles and delayed the onset of IAV and PRRSV infections in the sentinel pigs.

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HealthArticle

Tonsil scrubbing as a tool for monitoring chronic carriers of the PRRS virus

Tonsil scrubbing using sponge catheters demonstrates a greater capacity for virus detection compared to sera from infected sows.

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HealthAbstract

Assessment of changes in antibiotic use in grow-finish pigs after the introduction of PRRSV in a naïve farrow-to-finish system

The PRRSV outbreak in the source was associated with a grow-finish antibiotic usage increase.

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HealthPress releases

ProtonDx's Dragonfly wins 2025 Tesco Agri T-Jam, offering a rapid new way to fight PRRSV and swine flu

The Dragonfly diagnostics platform wins the prestigious award for its rapid, on-site pathogen detection, enabling swine producers to proactively manage swine herd health, cut antibiotic use, and optimise their supply chains.

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HealthAbstract

333 Emerging Voices - Long-distance airborne transmission of PRRSV: a systematic review

This work presents a systematic review of the available scientific literature on the long-distance airborne transmission of PRRSV. Final thesis at the College of Veterinary Medicine, UAB, Spain, advised by Enric Mateu.

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NutritionArticle

Boosting immunity against viral challenges

Boosting key performance indicators in swine production requires addressing viral pathogens, which remain a major challenge for swine health, performance, and farm profitability. Emerging strains, such as H1N2#E and devastating diseases like ASF, highlight the urgency for innovative control strategies. C12 monoglycerides represent a promising approach to enhance pigs’ immune defenses and mitigate viral impact.

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Figure 2. Timeline and animal flow diagram during the depopulation–repopulation process.

HealthArticle

Health restart: the power of depopulation and repopulation to restore profitability

When losses and costs from poor health threaten the current and future farm profitability, perhaps a “clean slate” should be considered.

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HealthAbstract

Explaining the persistence of PRRSV in vaccinated breeding herds

Selection of viral variants with enhanced transmission and reduced neutralization susceptibility alongside lateral introductions may explain the persistence of PRRSV in vaccinated breeding herds.

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HealthNews

UK: PRRS project funding to improve biosecurity in Scotland

A project to eradicate PRRS from Scotland to get further Scottish Government funding.

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HealthNews

U.S: Launch of new monthly PRRSV variant report

A new national surveillance effort enhances decision-making in swine health by identifying and communicating emerging PRRSV variants.

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HealthNews

Denmark: Analysis on PRRS and antibiotic consumption in 2024

There was a highly significant effect of PRRS health status on the median antibiotic consumption at the herd level.

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ManagementAbstract

Environmental enrichment affects immunity and reduces disease severity in pigs after co-infection, with stronger effects when applied from birth than from weaning

Enriched housing from birth reduced disease severity to co-infection with PRRSV and A. pleuropneumoniae.

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Markets-EconomicsNews

South Africa’s Pork Industry Faces Threat from US Trade Choice

South Africa risks its pork industry to protect citrus exports as US trade demands market access for pork despite PRRS disease concerns.

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Figure 1: Representation of a recombination event generating a new virus. The region before and after the points where the two lines cross denote the portion of genomes received from the two parental viruses. Genome regions are shown at the top.

HealthArticle

The implications of the PRRSV recombination dilemma

PRRS control measures also reduce the opportunities for different wild-type viruses to recombine and create more aggressive strains.

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Figure 1: Schematic representation of a PRRSV whole genome (GenBank U87392) and the target regions for different diagnostic assays. In the United States, RT-PCR assays to detect modified live virus (MLV) vaccine-like viruses target the nsp2 region, and CLAMP sequencing to block amplification of MLV vaccine viruses during Sanger sequencing targets the ORF5 gene.

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HealthArticle

PRRS Molecular diagnostics: when sequencing only 4% is not enough

Genetic mutation and evolution of PRRSV can occur across all genes. Unlike ORF5, which only represents about 4% of the PRRSV genome, NGS can recover a whole PRRSV genome to be used in epidemiological investigations.

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HealthAbstract

Comparison of a novel rapid sampling method to serum and tonsil scraping to detect PRRSV in acutely infected sows

Results suggest great potential of tonsil-oral scraping as a novel, practical, and rapid tool for PRRSV RNA detection in sows to assess sow herd status.