Snotsiekte how do cattle get it?

Answer 1

From the Merck Veterinary Manual (see link below):

"MCF results from infection by one of several members of a group of closely related ruminant gammaherpesviruses of the Rhadinovirus genus. While the MCF group of ruminant rhadinoviruses currently comprises about 10 known members, only a few are known to be pathogenic under natural conditions."

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"The severity of SA-MCF outbreaks depends on factors such as the total numbers, population density, and species of susceptible hosts involved; the closeness of contact; and the amount of shed virus available for transmission. Cases usually are seen sporadically in European breeds of cattle ( Bos Taurus ), as they are a relatively resistant species. By contrast, Bali cattle, bison, and some but not all cervid species (eg, white-tailed deer, Pere David's deer) are highly susceptible. As agricultural systems involving bison and deer production have developed, MCF has become more troublesome. It is a leading cause of infectious disease losses on New Zealand deer farms. In bison exposed to large numbers of adolescent sheep, losses can be devastating. About 800 head died in one outbreak in the USA in 2003."