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INDIRECT contact with infected wild birds was the most likely source of the highly pathogenic avian influenza (HPAI) virus that infected a duck breeding premises in Yorkshire last year, according to a report summarising all the epidemiological investigations carried out into the outbreak.
The outbreak was confirmed on November 16, 2014, and was caused by the H5N8 strain of avian influenza virus (VR, November 22, 2014, vol 175, pp 495-496). The epidemiological report, which was prepared by the APHA and published on March 12, explains that the virus was the same strain and showed close sequence similarity with a virus causing outbreaks at the same time in Germany, the Netherlands and Italy. It also notes that the same strain was recovered in the same time frame from two healthy wild birds shot in Germany, from the faeces of wild birds in the Netherlands and from a wild bird in the Russian Federation. The HPAI …