A total of 58 tissue samples from stillborn piglets, serum samples from diseased sows and piglets, and lungs and lymph nodes of dead piglets were tested for viral RNA by using reverse transcription PCR and primers specific for PRRSV
open reading frame (ORF) 7, which encodes nucleocapsid protein, as described (9).
Swine can be infected with PRRSV
by several routes of exposure, including intranasal, intramuscular, oral (Magar, et al.
Role of neutralizing antibodies in PRRSV
can spread through the air, due to pigs' respiration or coughing, but it does not affect humans.
Han sido descritas dos variantes del PRRSV
presentes en EEUU (variante VR 2332, U87392) y en Europa (Lelystad, LV, M96262) cuyas secuencias genomicas difieren en 50-70%.
Control of PRRSV
by multiple vaccination and segregation of population.
De las 12 granjas, en 2 habian evidencias clinicas de brotes sugestivos de PRRSV
, (falla reproductiva, abortos, mortalidad elevada en lechones recien nacidos y en destete), en 7 historia de enfermedad respiratoria persistente en cerdos en crecimiento, en 2 granjas habia desordenes reproductivos y en 3 granjas no habia historia sugestiva de PRRSV
We sampled 108 farms reporting pigs that had a clinical syndrome consistent with PRRSV
infections in the provinces of Thai Binh (May), Tien Giang (July), and Soc Trang (July).
In general, PRRSV
causes a disease characterized by reproductive failure in sows and respiratory infection in growing pigs.
Johnsen and a group of Danish researchers report on the importance of the cytokines IFN-a and IL-10 in protective immunity against PRRSV
is a member of the family Arteriviridae in the order Nidovirales, which also includes severe acute respiratory syndrome coronavirus.
During April 2008-December 2009 in Shandong Province, 613 blood samples were obtained from hybrid wild boars that had not been vaccinated against PRRSV