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African Swine Fever

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African Swine Fever, Ghana, October 1999
Impact Worksheet

Summary: The current outbreak of African Swine Fever in Ghana is of negligible risk to the US swine herd. The US does not consider Ghana free of ASF and has imported virtually no swine or swine products from Ghana from January 1997 to July 1999. Ghana is not a significant player in the international market for exporting swine and swine products.


How extensive is the situation in the affected country and what was the country’s disease status prior to the outbreak?

ASF was reported to the OIE on October 21, 1999, by the Acting Director of the Veterinary Services Department, Ministry of Food and Agriculture, Ghana. Diagnosis was made using direct and indirect immunofluorescence test. The estimated date of first infection was September 23, 1999. Four outbreaks were reported, each in a separate location. Total number of cases in the outbreaks was 1,046, with 581 deaths and 459 slaughtered. All ages groups of animals were affected.

Source: OIE Disease Information Report

CEI LogoOther African countries reporting ASF to the OIE within the past 18 months are Botswana, Madagascar, Namibia, Nigeria, Senegal, and Togo. The USDA considers all countries on the African continent to be affected with ASF.

What is the country’s place in the international market for affected animals and animal products?

During 1998, Ghana produced 0.01% of worldwide pig meat production and 1.0% of African pig meat production. In 1998, pig stocks in Ghana represented 0.04% of worldwide pig stocks and 1.5% of African pig stocks.

Source: United Nations FAO

What is the country’s production and trade in affected animals and animal products?

The size of Ghana’s swine herd during 1998 was 339,156 head. Ghana slaughtered 305,000 head and produced 8,540 metric tons of pig meat in 1998. In 1997, Ghana was a net importer of pig meat, with imports of 4,559 metric tons and exports of only 5 metric tons. There were no reported imports or exports of live pigs for Ghana.

Source: United Nations FAO

What are the U.S. imports of affected animals or animal products from the country?

No live swine or swine meat were imported into the US during the period from January 1997 until July 1999. In 1998, just over 300,000 kg of "animal products chiefly used as food for animals or as ingredient in such food" were imported from Ghana. It is unknown whether this would include products derived from swine or not. No importation of this product was reported in 1999 from January to July.

Source: World Trade Atlas

What is the level of passenger traffic arriving in the United States from the affected country?

The US Department of Transportation reported 19,499 passengers arrived in the US on direct flights from Ghana in 1997. It is likely that additional passengers originating in Ghana came into the US on non-direct flights. The Agricultural Quarantine Inspection Monitoring Program conducted by USDA, APHIS, PPQ found 0 of 131 sampled airline passengers arriving in the US from Ghana in fiscal year 1998 to be carrying pork products.

Source: US Department of Transportation Onboard International Database Report

CEI’s interpretation:

The current outbreak of ASF in Ghana is of negligible risk to the US swine herd. The US does not consider Ghana free of ASF and has imported virtually no swine or swine products from Ghana from January 1997 to July 1999. Ghana is not a significant player in the international market for exporting swine and swine products.

CEI’s plans for follow up:

CEI currently has no plans to provide additional information on this situation; however, if the situation should change significantly, follow-up information will be provided. If you seek more information or wish to comment on this worksheet, please reply to this message or contact Judy Akkina at (970) 490-7852 or Vicki Bridges at (970) 490-7822.

Prepared by: Center for Emerging Issues, Centers for Epidemiology and Animal Health

Animal and Plant Health Inspection Service, USDA



Additional Information