[20190517]IF11215_非洲猪瘟（ASF）.pdf

https:/crsreports.congress.gov May 17, 2019African Swine Fever (ASF)Between September 2018 and May 2019, the number of African swine fever (ASF) outbreaks has rapidly increased, most notably in China, triggering economic losses in affected pork-producing countries (Figure 1). Since September 2018, the World Organization for Animal Health (OIE)an intergovernmental organization coordinating, supporting, and promoting animal health and disease controlhas reported that over 2.8 million hogs have been culled globally due to ASF. Many industry observers believe that the actual number of culled animals is much higher. The extent of ASF outbreaks is expected to affect international trade in pork and feedstuffs. The U.S. Department of Agricultures (USDA) Animal and Plant Health Inspection Service (APHIS) is monitoring the global spread of ASF and has developed plans to prevent ASF introduction into the United States. Background ASF is a viral disease that affects swine, including domestic pigs, feral (wild) swine, wild boar, and other exotic swine. Infected swine may exhibit symptoms including high fever, decreased appetite, and weakness. ASF leads to nearly 100% mortality rates in swine h