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In relation with the reoccurrence of PRRS in Chile, the OIE reports that genotyping indicates that the current strain has no relation with the strain eradicated in 2007; therefore, it would be a new strain of the virus.
Sequencing of the circulating strain shows a similarity between 95% and 97.7% with strains from Mexico and the United States of America.
The strains in the outbreaks occurring in industrial-type farms have a similarity of 99.2% with the strains in the backyard outbreaks.
Friday November 15, 2013/ OIE.
http://www.oie.int
