RT Journal Article SR Electronic T1 Genetic relateness of Haemophilus parasuis among reference strains and Chinese epidemic isolates JF bioRxiv FD Cold Spring Harbor Laboratory SP 012393 DO 10.1101/012393 A1 Min Yue A1 Huanchun Chen YR 2014 UL http://biorxiv.org/content/early/2014/12/05/012393.abstract AB Haemophilus parasuis is the causative agent of Glässer’s disease and a commensal coloniser of the porcine upper respiratory tract. Multiple complex factors, including the early weaning of piglets and the management of high health status farms, make it a re-emerging agent, responsible for a recent increase in the prevalence and severity of disease in pigs in China. However, little genetic information is known about Chinese epidemic isolates. In this study, a phylogenetic method for genotyping the H. parasuis population with available Chinese epidemic isolates and reference strains from different origins is presented. Phylogenetic analysis confirmed that there are at least two different genotypes in H. parasuis population and a unique Chinese lineage with virulence results in the previous epidemics.