Page 2 of articles about respiratory

Characterization of two porcine parainfluenza virus 1 isolates and human parainfluenza virus 1 infection in weaned nursery pigs

This study suggests potential pathogenesis differences between PPIV1 isolates. HPIV1 is capable of replicating in nursery pigs after experimental inoculation.

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HealthArticle

Pulmonary lesions at the slaughterhouse: how to evaluate them

Collecting data at the slaughterhouse is a common method to obtain information on health and productive parameters, mainly from the last weeks of a pig’s life.

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HealthAbstract

Assessing the role of sow parity on PRRSv detection

PRRS virus persistence in processing fluids was not affected by the sow parity effect in most of the breeding herds studied.

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HealthAbstract

Actinobacillus suis isolated from diseased pigs are phylogenetically related but harbour different number of toxin gene copies in their genomes

The goal of this work was to profile, with molecular methods, A. suis isolated from diseased pigs and to compare them to other isolates.

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HealthAbstract

Identification of pulmonary infections with porcine rotavirus A in pigs with respiratory disease

A high frequency of porcine rotavirus A was detected in lungs from pigs with respiratory disease.

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Facilities-Equipment Press releases

EuroTier’s Animal Welfare Award 2022

Boehringer Ingelheim Vetmedica GmbH was one of the three companies to receive this special recognition.

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HealthPress releases

Boehringer Ingelheim's TwistPak^® mixing platform for swine vaccines brings convenience and flexibility

TwistPak® allows for fresh mixing of Ingelvac CircoFLEX® and Ingelvac MycoFLEX® on farm in less than 5 seconds.

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Figure 1. Percentage of PCR-positive PRRSV submissions for the age categories adult/sow farm and wean-to-market over time. The black boxes demonstrate the more accentuated and/or earlier spikes in grow-finish data compared to that of sow farms. Source: ISU-VDL: Iowa State University Veterinary and Diagnostic Laboratory; UMN-VDL: University of Minnesota Veterinary and Diagnostic Laboratory; SDSU-ADRDL; South Dakota State University Animal Disease Research and Diagnostic Laboratory; KSU-VDL: Kansas State University Veterinary and Diagnostic Laboratory; OH-ADDL: Ohio Animal Disease and Diagnostic Laboratory.

HealthArticle

Highly pathogenic PRRSV 1-4-4 L1C variant: emergence, sources, and implications to the global industry

This PRRSV strain is affecting the U.S. Understanding where these viruses come from can help us stop this cycle.

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Pirbright scientists investigate pig coronavirus infection to understand COVID-19 in humans

Researchers at Pirbright have developed a pig respiratory coronavirus (PRCV) model which will help to understand how coronaviruses cause disease and how the immune system responds to them.

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Figure 1. Modified from McCullers, 2014.

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HealthArticle

How does swine influenza virus facilitate secondary bacterial complications?

The influenza virus promotes colonization by secondary bacterial agents in the lung, facilitating their passage into the bloodstream.

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Image 1. PRRSV ticking bomb. It is only a matter of time before other PRRSV lineages move through more pathogenic evolutionary stages.

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What can we expect from PRRS virus evolution?

In this article we summarize further discussions that we had with Dr. Nauwynck about his research findings on PRRS virus-host evolution.

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Image 2. Illustration of the receptors generally considered for PRRSV. Source: Zhang, Q., Yoo, D. (2015)

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Type 1 PRRS virus evolution explained by Dr. Hans Nauwynck

Dr. Hans Nauwynck, a well-known professor at the University of Ghent, reviews with us the most important findings that he has made in PRRS virus research since it was first discovered 30 years ago.

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Figure 2: ADG value (grams) in relation to the lung score (scale of  0 to 28 points). Adapted by Pagot et al. (2007).

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The economic impact of pneumonia processes in pigs

What is the actual effect of pneumonia on the farm's economic performance? What similarity is there between pneumonia and heat stress?

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Figure 5: Pig lung co-infected with M. hyopneumoniae and A. pleuropneumoniae.  Cranioventral areas of consolidation with a reddish-brown color, caused by infection by M. hyopneumoniae, and an oval-shaped lesion with pleural fibrosis and hemorrhagic area in the diaphragmatic lobe, which would correspond to the chronical stage after an outbreak of necrosis caused by A. pleuropneumoniae.

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Principal co-infections of the porcine respiratory system

M. hyopneumoniae is involved in most of the co-infections of the porcine respiratory system. How does it act and what effects does it have?

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Glaesserella australis on blood plate with Staphylococcus aureus displaying satellitism. Source: QAAFI

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New bacterium discovered that causes lung lesions

A previously unrecognized bacterium that causes signs of lung disease found in pig carcasses has now been named.

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Picture 2. Cranio-ventral consolidation of the lung can be seen with Mycoplasma hyopneumoniae.

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The different sounds of cough

Respiratory pathogens produce different coughs. Any coughing by pigs in a grow-out barn can vary according to the infection present, so it is worthwhile to listen carefully.