Haemophilus parasuis detection test kit by using qPCR. Haemophilus parasuis is one of the most important bacteria affecting pigs. Neonatal pigs are exposed to and colonized by the organism early in life but the pathogenesis is poorly understood. Some serotypes are responsible for Glasser’s disease, where affected pigs can die in less than two days. H. parasuis is present in all major swine-rearing countries and remains a significant pathogen in contemporary swine production systems.