What does Haemophilus Somnus Mean?

Q:
What does haemophilus somnus mean?

A:
Haemophilus somnus is a small, rod-shaped, gram-negative haemophilus. Its gram stain morphology is like other species in this genus.

It was first discovered in 1960. H. somnus was described as a “haemophillus-like organism” that caused infectious meningo-encephalitis (IME) of feedlot cattle in California. Besides, it was also believed to be the infectious agent that caused the reported 1956 Colorado bovine central nervous system disease.

The bacteria commonly lives in the upper respiratory tract, prepuce and vagina of cattle and can also be found circulating in the bloodstream. Beyond cattle, H. somnus is also typically found colonize in many other herd animals such as sheep and American bison. Cattle infections caused by the bacteria have been reported in many parts of the world, including North and South America, Europe, Russia, Japan, Australia, New Zealand, South Africa, and Zimbabwe.

To fight against cattle diseases caused by H. somnus, it is useful to have the bacteria’s genome sequenced. Through this way, it can be compared to virulent strains to aid in the development of protective strategies and vaccines.

Keyword: haemophilus somnus

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