Page 6 of articles about PRRS in Articles

NFID administered swine vaccines can use half to a tenth of the dose required for intramuscular vaccines because of the higher antigen dispersion and contact with the antigen presenting cells found in skin.

A method to quantify the relative economic importance of pig health status at placement by specific pathogens (PRRSv and PEDv) and to estimate the effect of a specific type of PRRSv at a specific production system is presented.

The method is based on oral fluid collection from the groups of viraemic pigs by means of cotton ropes that will be hung in the incoming gilts pens.

The first and the most important condition at the beginning of PRRSV control program is to disrupt virus circulation in the reproductive herd.

Effect of modified-live porcine reproductive and respiratory syndrome virus vaccine on the shedding of wild-type virus from an infected population of growing pigs.

After 24 years of experience we still don't have a control plan agreed upon and accepted by all our technical community. Why?

The accuracy and security provided by the combination of samples of weaned pigs and piglets at birth, either stillborn or live piglets, help us make a decision that will be crucial in any eradication plan.

Only a few EU countries are discussing national eradication as a possibility.

The classification system for PRRSV status of herds is based upon a set of definitions reflecting the biology and ecology of PRRSV.

The tissue damage is the consequence of direct apoptosis (and necrosis) of alveolar macrophage and their neighboring cells due to the release of apoptotigenic cytokines, reactive oxygen species, and nitric oxide.

Currently, no single RT-PCR assay could be recommended as a universal method allowing for detection of all PRRSV strains with optimal sensitivity.

Infection with swine influenza virus and porcine reproductive and respiratory syndrome during the suckling period was associated with an increase in post-weaning mortality (more limited in the case of SIV and of larger magnitude for PRRSV).

In Korea, it is common to vaccinate sows as a whole-herd mass vaccination program, where all sows are vaccinated quarterly with a type 2 PRRSV vaccine. Therefore, it is recommended to vaccinate breeding females quarterly with additional type 1 PRRSV vaccine to control type 1 PRRSV infection.

The estimated cost of PRRS for European pig producers is 1,5b € every year.

The article suggests measuring external risks in order to compare swine farms based on a numerical figure, and thus initiate corrective measures to improve and numerically verify the improvements achieved.

Type 1 PRRSV is highly prevalent in Korean swine herds and currently reproductive failure is more important consequence of infection with type 1 PRRSV, than is respiratory diseases in growing pigs.