Histophilus somni is a Gram-negative, fastidious, facultative pathogenic bacterium. It had many former names (Histophilus ovis, Haemophilus agni, Haemophilus somnus) that were used parallel, resulting certain confusion. The taxonomical position of the microorganism was not clarified for a long time, the name Histophilus somni was suggested a few years ago. H. somni is a coloniser of the respiratory and genital tract of cattle and sheep. It can cause local or generalised diseases, but there are asymptomatic carriers in both animal species. In cattle it can cause thrombotic-meningoencephalitis, pneumonia and reproductive problems, as well as septicaemia, orchitis and epididymitis in sheep. The authors review the taxonomical position, culturing, morphology, resistance, biochemical properties and identification of the bacterium in the first part of the review.
|Number of pages||10|
|Journal||Magyar Allatorvosok Lapja|
|Publication status||Published - febr. 1 2010|
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