Page 9 of articles about PRRS in Articles

The first goal of the project is to control PRRSv-infections in order to produce negative offspring.

Pathogens that are transmitted mostly through direct, pig to pig, contact are generally contained with today’s biosecurity programs and pig flow strategies. However, pathogens using multiple routes of transmission seem to evade standard biosecurity programs.

A risk of airborne transmission of PRRSV is real, and air filtration can significantly reduce its risk. Area regional approach on PRRSV control/elimination indicates our direction where we should move forward in future.

About 50% of the vehicles used for transporting pigs in the United States are not washed between loads, so this article evaluates the ability of heating treatments to inactivate PRRSv present in manure-contaminated environments.

This farm produces its own gilts from grandmother sows, but taking advantage of the adaptation to meet the needs of the welfare law it was decided to increase its capacity from 600 sows to 1,200.

Clinical disease and outcome following PRRS infection has significant inherited components.

Is the right strategy to get a farm stable, that is, control clinical signs reducing the economic impact of the disease; or should a farm adopt strategies to go “negative”? As for other questions in the epidemiological field, our answer is “it depends”.

One of the challenges when conducting a disease elimination project is to ensure that the pathogen has in deed been eliminated from the herd.

One of the greatest long-term potentials for genomic selection is to identify specific genes or genomic regions with a significant impact on pig health and to aid selection for disease resistance and/or disease tolerance.

In general terms, immunization through vaccination is the easiest and safest way to stabilize a herd.

PRRSV by itself may induce mild-to-severe respiratory disease but rarely results in mortality.

Resolving the basis of viral and host variation will require identification and characterization of key B- and T-cell epitopes conserved among diverse PRRSV, and of the molecular and structural details of key effector antibodies, T-cell antigen receptors, and MHC molecules that mediate broad, cross-protective immunity.

One month after the beginning of the outbreak of reproductive failure in sows, acute respiratory disorder and diarrhoea that was non-responsive to antibiotics started in weaned pigs aged 6-8 weeks...

The total cost of productivity losses to US producers is estimated at US$664 million annually but productivity losses are shifting from the growing pig herd to the sow herd.

The prevalence of pleurisy is surprisingly high among pigs at slaughter. A recent review of available data ranged from 12.5% in the UK, 26% in Spain, to 41% of individual pigs slaughtered in one Norwegian study.

This study demonstrates the added profitability that air filtration can give to sow farms located in highly dense swine regions. However, it is important to point out that these figures are long term averages and not necessarily predictors for individual herds.