Frequency and origin of live imports of breeding-stock pigs to the United States

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This week, we are sharing a report from the MSHMP team in collaboration with the Swine Health Information Center regarding the origin of the pigs that are imported for breeding purposes.

Key Points

  • International live pig transport is a possible route for disease entry into the U.S.
  • The first step in assessing this risk is to categorize and analyze breeding stock import data
  • Small numbers of imported breeding pigs have come from a variety of countries, but the majority come from Canada
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First Oral Vaccination of Eurasian Wild Boar Against African Swine Fever Virus Genotype II

This is our Friday rubric: every week a new Science Page from the Bob Morrison’s Swine Health Monitoring Project. The previous editions of the science page are available on our website.

This research summary is shared by Prof. Sanchez-Vizcaino and his team at the Compultense University of Madrid.

Key points

  • A weakly virulent, non-hemadsorbing ASFV strain was isolated in 2017 from a hunted wild boar in Latvia (Strain ID: Lv17/WB/Rie1) with the potential of being used as a vaccine.
  • Oral vaccination of wild boars with strain Lv17/WB/Rie1 protects animals against a virulent hemadsorbing (ASF genotype II).
  • Contact animals exposed indirectly to the vaccinated animals were also protected against the ASF virulent strain
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UMN swine faculty interviewed on African swine fever

Last week, Drs. John Deen and Jerry Torrison were interviewed about African Swine Fever, the virus decimating the Chinese hog industry. They shared why it is a concern for our swine farmers in the Midwest, and how the University of Minnesota is participating in the effort to prepare for it.

Watch the full video on the KTTC website.

SHIC and the UMN Help Uncover Risk for ASF Introduction into the US via Air Passengers’ Luggage

In 2018, African swine fever (ASF) spread into Western Europe, and, for the first time, into China and Southeast Asia. Such dramatic change in the global epidemiological conditions of ASF has resulted in concerns the disease may continue to spread into disease-free regions, such as the US. An analysis funded by the Swine Health Information Center and National Pork Board estimated the risk for introduction of ASF virus into the US through smuggling of pork in air passengers’ luggage. The analysis was conducted by the Center for Animal Health and Food Safety, College of Veterinary Medicine, University of Minnesota (OIE collaborating center on capacity building) and the Universidad Complutense de Madrid, Spain (OIE reference laboratory for ASF).

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African Swine Fever (ASF) Reported in Vietnam

This report was published by the Swine Health Information Center on February 19th, in collaboration with the University of Minnesota, Swine Disease Global Surveillance group.

Although it has not been officially reported to the OIE, the Vietnamese Ministry of Agriculture and Rural Development (MARD) Animal Health Department released a communication confirming that ASF has been detected in two provinces in northern Vietnam, Hung Yen and Thai Binh, southeast of the capital city of Hanoi and at approximately 100 miles (160 km) from the Chinese border (Maps 1,2). Eight outbreaks have been reported, and all pigs in the affected farms have been culled. Neighboring farms are being tested as well. Local authorities initiated general measures to contain the outbreaks and disinfect the area through quarantine and restrictions of animal movements, but, so far, the total number of cases is still uncertain.

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