Page 14 of articles about prrs
PRRSV in Europe: where did it come from?
The great genetic diversity of East European strains has practical implications, the sensitivity of some of the diagnostic PCR methods can be compromised and the efficacy of the current PRRSV vaccines against the East European genetic variants still needs to be elucidated.
Comparative analysis of cytokine transcript profiles within mediastinal lymph node compartments of pigs after infection with PRRS
Interaction between PRRSV and respiratory coronavirus or influenza virus
Enric Marco tells us that of late, it is relatively common to see fattening pigs in their final phase exhibiting respiratory symptoms that respond poorly to antibiotic treatments. In these cases, we usually think of PRRS virus; however raising the possibility of a mixed viral infection is less frequent...
Serological diagnosis of PRRS
A definitive diagnostic evaluation of PRRS with respect to clinical disease requires that serological information be interpreted in combination with results from other virus assays.
Interaction between PRRSV and Streptococcus suis
PRRSV favours the appearance of secondary infections like the one caused by S. suis due to the impairment of the alveolar macrophages cleaning functions.
United Kingdom: upward trend of PRRS diagnoses
Compared infection of SPF pigs with a French or a East‐European highly pathogenic PRRSv strain
Long-distance airborne transport of infectious PRRSV and Mycoplasma hyopneumoniae
Surrounding holdings with high hedge fences reduces the risk of airborne transmission.
Laboratory detection of PRRS virus
PCR is expensive relative to other diagnostic methods.It should be kept in mind that a positive result on PCR indicates the presence of viral RNA and does not necessarily indicate the presence of infectious PRRSV.
Interaction between PRRSV and H. parasuis
PRRSV does not favour infection by H. parasuis by reducing the population of alveolar macrophages, but by reducing their ability to inactivate the bacteria.
Detection of total and PRRSV-specific antibodies in oral fluids collected with different rope types
Interaction between PRRS and App
App control is an essential link to control pleuroneumonia in PRRS-positive herds.
Transmission routes, control and prevention of PRRS
PRRS virus infection can be considered common in areas of high pig density and, in such cases, the idea that biosecurity and can do little is widespread. However, proper biosecurity measures must be implemented in order to prevent the introduction of new strains.
Importance of sequential order of coinfection by PRRSV and PCV2
This article proves that, at least "in vitro" order matters. In PRRSV/PCV2 mixed infections, the consequences are worse when PRRSV infection occurs before or concurrently to PCV2 infection, than when the sequence is reversed.
Diagnosis of PRRS
Any tentative clinical diagnosis then should be confirmed by detection of PRRSV (infectious virus, viral antigens and/or viral genomic material) in affected pigs using laboratory methods in conjunction with typical lesions.