Swine Health - General Disease
The immunological significance of PRRS virus genetic variation
February 4, 2005By Kyoung-Jin Yoon
A high rate of genetic and antigenic variability is known to exist among PRRS viruses and has garnered great attention from the swine industry since such a phenotypic variation is perceived to...
Swine Health - General Disease
A novel PRRS vaccine in a bacterial vector known to stimulate strong cell-mediated and humoral immunity
November 5, 2004By MVSc|PhD|Ramesh Vemulapalli BVSc&AH
The results of this research project suggest that, despite several unique, advantageous properties, Brucella abortus RB51 is not very useful for developing effective recombinant PRRS vaccines.
Swine Health - General Disease
Efficacy of Multiplex SIV TaqMan? RT-PCR and PRDC Microarray Hybridization in Predicting Swine Influenza Virus Genotype
November 1, 2004By Kay S. Faaberg
New Multiplex TaqMan? RT-PCR genotyping assays for HA and NA genes of SIV were developed. These new diagnostic tests will advance available SIV diagnostics, both in speed and accuracy. We found that...
Swine Health - General Disease
Protective Immunity against Porcine Reproductive and Respiratory Syndrome Virus (PRRSV)Obtained by Passive Administration of Antibodies: Optimization of the Conditions
October 7, 2004By Fernando Osorio
Neutralizing antibodies are those antibodies produced by a pig infected with PRRSV which, when mixed with PRRSV in a test tube, render it uninfectious by inactivation. Based on the results of...
Swine Health - General Disease
The influence of maternal antibody against porcine reproductive and respiratory syndrome virus (PRRSV) infection and the effect of a killed PRRSV vaccine in increasing the level of maternal antibody
October 7, 2004By Eileen Thacker
PRRSV-positive sow herds can produce PRRSV-negative pigs. This phenomenon is important in herd stabilization against PRRSV-induced disease. One possible explanation of this phenomenon would be that...
Swine Health - General Disease
Clostridium difficile as a Cause of Enteritis in Neonatal Pigs
October 5, 2004By J. Glenn Songer
Strains of C. difficile from piglets are quite uniform genetically, which suggests that a single immunoprophylactic product, when developed, will be effective across the industry. Furthermore, the...
Swine Health - General Disease
Optimization of Methods for the Study of Swine Viral Pathogens in Aerosols
July 30, 2004By Jeffrey Zimmerman
Understanding the routes of PRRSV transmission and doses required to cause infection within and between herds is critical for control and eradication of PRRSV. Aerosol research is dynamic and...
Swine Health - General Disease
Real-time PCR detection of PRRSv and rapid identification of vaccine in serum and semen
July 28, 2004By Dr. Richard Oberst
The detection of PRRSv in boars is critical for developing and maintaining a biosecure breeding program, however it is complicated by many variables. Correlating the current PRRSv infectious status...
Swine Health - General Disease
Immunomodulation of humoral immunity in PRRSV-infected piglets
July 7, 2004By John Butler
PRRS is caused by a virus that causes the host's immune system to malfunction much in the same manner in which infectious agents can trigger the onset of autoimmune syndromes like Lupus or rheumatoid...
Swine Health - General Disease
Environmental Factors that Induce the Expression of Receptors for F18+ Enterotoxigenic Escherichia coli
June 30, 2004By David Francis
This study was conducted to determine why pigs become highly susceptible to F18+ enterotoxigenic E. coli shortly after weaning. It was suspected that the change in susceptibility was triggered by...
