Thursday, October 20, 2016

New virus associated with polio-like symptoms in pigs.

A new virus associated with polio-like symptoms in pigs has been discovered by US researchers . This is a novel virus in the central nervous tissues of young pigs with polio-like weakness in their hind legs.Farms dealing with the disease may lose 1-2% of pigs, making it a concern for individual producers The Iowa State University reported that Paulo Arruda, an assistant professor of veterinary diagnostic and production animal medicine, led a team of diagnosticians from Iowa State, the University of Minnesota and Kansas State University. They investigated samples from 11-week-old pigs that couldn’t walk due to a mysterious weakness in their hind legs. The report shows that the diagnostic team found microscopic lesions in the pigs’ central nervous tissues containing a novel sapelovirus that researchers hadn’t previously encountered. Sapeloviruses belong to a family of viruses commonly found in pigs, but this particular strain was different from all other sapeloviruses previously described. Reporting findings suggests, a lack of scientific evidence regarding the virus means it’s impossible to know just how widely it may spread, but the epidemiology of other viruses within its family leads the team to believe this particular strain may be fairly common on US hog farms. However, only a small percentage of pigs with the virus likely will display symptoms, and there is no evidence now that suggests pork is unsafe to eat.more

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