More than 50% of all systemic samples tested by HPS PCR at the Iowa State University Veterinary Diagnostic Laboratory (ISU VDL) are positive.
articles about Haemophilus parasuis - GlasserTags
The recent development of PCR serotyping is a step forward that allows any laboratory to determine the serotype of the isolated H. parasuis strain.
An erythema multiforme (EM) was noticed in the majority (90%) of breeding stock, associated with respiratory problems and without mortality.
PRRSV does not favour infection by H. parasuis by reducing the population of alveolar macrophages, but by reducing their ability to inactivate the bacteria.