Porcine Health Management

Chosen Topics:

Virology and Viral Diseases

1 - 15 of 86

Frequency of Porcine circovirus 3 detection in serum of pigs with respiratory and digestive disorders

In 2015 a novel porcine circovirus (PCV), named as PCV-3, was found by next generation sequencing methods from animals with different disease conditions. Although its pathogenicity has not been clearly established yet, it has been linked with reproductive...
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

Mutations in antigenic sites of the hemagglutinin protein following influenza vaccination

In Europe, the most widespread method for controlling influenza A virus infections in piglets is implementation of sow vaccination programs to secure delivery of maternal derived antibodies to the new born piglets. However, recent studies have questioned...
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

Impact of PCV2 co-infection on replication level of a field vaccine-like PRRSV-1 strain

In pig herds, PRRSV is often associated with PCV2, this co-infection being one key factor leading to post-weaning multisystemic wasting syndrome (PMWS). Worryingly, association of a PRRSV modified live vaccine of Type 2 (MLV2) with PCV2 infection was also...
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

Multisystemic inflammation in piglets in a herd with congenital tremor and concurrent deformities

An episode of congenital tremor (CT) with concurrent increase in piglet deformities in a breeding herd was investigated.
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

Is ORF5 nucleotide sequence analysis sufficient for tracing PRRSV-1 strains?

PRRSV causes the most significant swine disease worldwide and shows remarkable genetic variation. PRRSV genotyping is being performed mostly based on ORF5 and/or ORF7 sequence analysis. Recent papers indicate that recombination between PRRS viruses may...
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

Analysis of resilience markers in relation to abortion rate in pigs

The concept of Resilience is used to define the ability of animals to overcome internal and external stressors, such as pathogen challenges. In pigs, a number of genetic markers have been studied in relation to the response to infection with the porcine...
Type
Abstract
Year
2019
Topic
Virology and Viral Diseases

DEEP-SEQUENCING CHARACTERIZATION OF TWO ROTAVIRUS A OUTBREAKS IN SUCKLING PIGLETS IN CATALONIA REVEALS A HIGH FREQUENCY OF RECOMBINATION EVENTS

Group A rotaviruses are one of the main causes of diarrhoea in pigs worldwide. In the present study, two outbreaks of diarrhoea in suckling pigs were investigated. Four rotavirus A isolates were deep sequenced and analysed to characterize the genetic diversity and identify recombination events.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

PORCINE CIRCOVIRUS 2 WITHIN-HOST VARIABILITY, CO-INFECTION AND RECOMBINATION UNDER A NATURAL INFECTION SCENARIO

Porcine circovirus 2 (PCV2) is a virus characterized by high evolutionary rate, which promotes the potential emergence of different genotypes and strains. Despite the likely relevance in the emergence of new PCV2 variants, the subtle evolutionary patterns of PCV2 at individual-host level or over short transmission chains are still largely unknown.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

DIVERSITY OF PRRS STRAINS CIRCULATING IN CANADA

PRRS sequencing is widely used and considered essential for the control of PRRS in Canada. Through several signed agreements, a structure was put into place and has allowed achievement of near real-time transfer of all sequences to our research team from 3 different laboratories in Quebec.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

PRRS VIRUS SURVEILLANCE; ROLE OF VIRUS SEQUENCING AND VIRUS DETECTION BY PCR

Porcine reproductive and respiratory syndrome (PRRS) is a highly infectious disease, endemic in pigs throughout the world. PRRS is caused by a single stranded positive-sense RNA enveloped virus with a high mutation rate leading to greater heterogeneity of the nucleotide sequence between individual strains.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

THE USE OF ROUTINE SEQUENCING ACTIVITY TO MONITOR THE EPIDEMIOLOGICAL TRAJECTORIES OF PRRSV IN ITALY

Porcine reproductive and respiratory syndrome virus (PRRSV) is a major threat to European swine production and Italian pig industry. Viral evolution analysis in terms of genetic variability over time and space is one of the challenging issue in the PRRSV control mostly in swine production area characterized by high pig density, fragmentation of the production chain and lack of high biosecurity levels.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

FULL GENOME CHARACTERIZATION AND PREVALENCE OF PORCINE CIRCOVIRUS TYPE 3 ISOLATES FROM GERMAN FATTENING FARMS

Recently a novel porcine circovirus called porcine circovirus type 3 (PCV3) was reported from the Americas, Asia and Europe. PCV3 was detected with high prevalence in Polish farms, but to date no genome sequences were available from European PCV3 strains. The present study was performed to estimate the PCV3 prevalence in German fattening farms and to further characterize available PCV3 isolates.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

DEVELOPMENT OF A REAL-TIME RT-PCR FOR DIFFERENTIAL DETECTION OF REASSORTANT H1N2 (H1N2R) SWINE INFLUENZA VIRUS

Endemic swine influenza virus (swIAV) strains including H1avN1, H1huN2 have been circulating in Great Britain (GB) for decades. In 2009, H1N1pdm09 became the dominant strain detected followed by H1N2 and the rapid decline of H1avN1 detections. An H1N2-H1N1pdm09 virus reassortant was detected in 2010; comprising H1 haemagglutinin (HA) and N2 neuraminidase (NA) surface glycoproteins with the H1N1pdm09 internal cassette.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

CHANGES OF T AND B LYMPHOCYTES IN TISSUES AND BLOOD OF PIGS EXPERIMENTALLY INFECTED WITH AN ITALIAN HIGHLY PATHOGENIC PRRSV-1.1 ISOLATE

Highly pathogenic (HP) PRRSV recently emerged in Europe. The disease is characterized by high fever and respiratory distress in young pigs and high mortality rates and reproductive failure in sows. HP-PRRSV isolates can alter the pathological outcome differently from “conventional” PRRSV, in terms of more severe clinical signs and more intense dysregulation of cellular immunity.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases

1ST CASE REPORT: REPRODUCTIVE PERFORMANCE IMPROVEMENT AFTER PCV2 SOW VACCINATION IN SPAIN

PCV2 can be associated with reproductive failure and cause infertility and increased rates of mummified, macerated, stillborn and weak-born piglets. The aim of this study was to determine the impact of PCV2 sow vaccination on several reproductive parameters in a Spanish sow herd.
Type
Abstract
Year
2018
Topic
Virology and Viral Diseases