Feed additives mitigate for ASFV
Blueprint: Antimicrobial products inactivate viruses in two different ways.
By Megan C. Niederwerder, Kansas State University
via National Hog Farmer - Oct 12, 2020
Niederwerder is an assistant professor in the College of Veterinary Medicine at Kansas State University.
African swine fever virus is currently considered the most significant threat to worldwide pork production. Not only does ASFV cause severe disease and high case fatality in infected pigs of all age groups, but also detection of the virus in a single pig can shut down export markets and substantially shift the global trade of pork.
Since the first reported case of ASFV in China in August 2018, the virus has spread rapidly to more than 10 Asian countries, including Vietnam, North Korea, Cambodia, South Korea and the Philippines.
Most recently, in May 2020, India reported its first confirmed outbreak of ASF (NHF 2020) and listed the initial virus introduction as occurring in January 2020 (Lundeen 2020).
Concurrent to the spread of ASFV through Asia over the last two years, the virus was also being detected for the first time in several European countries, such as Belgium, Slovakia, Serbia and Greece.
Most recently, in September 2020, Germany reported its first case of ASFV detected in a dead wild boar located in close proximity to the border of Poland (Durisin, Parkin et al. 2020).
Within days of the announcement of ASF being detected in Germany, China and several other Asian countries, including Taiwan and Japan, banned pork imports and live pigs from Germany (Welshans 2020).
The discovery of ASFV and the resulting bans on pork from
Germany, the largest swine producer in the European Union, will cause substantial shifts in global pork markets. The impact of ASF on pork exports and the importance of preventing entry of the virus into U.S. swine herds cannot be overstated.
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