Haemophilus parasuis diagnostics

In the past few years, our understanding of the dynamics of Haemophilus parasuis infection has greatly improved. Techniques such as polymerase chain reaction (PCR) for detection of this microorganism in clinical samples and genotyping of field isolates have certainly enhanced our knowledge on prevalence and epidemiology of infection. Although we still have a long way to go regarding the development of effective control measures, the techniques available for H parasuis diagnosis are extremely useful for surveillance and management of infection. This report will describe the diagnostic techniques currently available for diagnosis of H parasuis. It will also address the advantages and limitations of each technique and discuss how data can be correctly interpreted.