1 Avian Influenza Situational Update February 2007 Dr. Patrick Pilkington VP Live Production Services

2 Avian Influenza: Key Points H5N1 highly pathogenic avian influenza is an animal disease. Currently there is no human flu pandemic anywhere in the world.H5N1 highly pathogenic avian influenza is an animal disease. Currently there is no human flu pandemic anywhere in the world. All Tyson flocks and 97% of the industry’s flocks are tested prior to processing.All Tyson flocks and 97% of the industry’s flocks are tested prior to processing. Consumers in the US have virtually no chance of encountering meat from a chicken or turkey infected with avian influenza.Consumers in the US have virtually no chance of encountering meat from a chicken or turkey infected with avian influenza. The virus is killed by the heat of normal cooking (165۫۫۫ F)The virus is killed by the heat of normal cooking (165۫۫۫ F)

3 Cumulative Number of Confirmed Human Cases of Avian Influenza A/(H5N1) Reported to WHO 6 February 2007 Source: Total number of cases includes number of deaths WHO reports only laboratory confirmed cases Country Total CasesDeathsCasesDeathsCasesDeathsCasesDeathsCasesDeathsCasesDeaths Azerbaijan Cambodia China Djibouti Egypt Indonesia Iraq Nigeria Thailand Turkey Viet Nam Total

4 Do we have avian influenza in the United States? We have never had an outbreak of Asian-type H5N1 highly pathogenic avian influenza in the United States

5 What is Tyson doing to protect its flocks? Biosecurity is a major priority for our company.Biosecurity is a major priority for our company. –Chickens raised for our North American processing operations are housed in modern, enclosed facilities, which prevent contact with wild birds and other potential carriers of disease. –Chickens raised for our North American processing operations are housed in modern, enclosed facilities, which prevent contact with wild birds and other potential carriers of disease. –By contrast, most chickens and ducks raised in Asia are allowed to run free with little separation from the environment which makes the birds more susceptible to acquiring the infection. Tyson constantly monitors its flocks for the presence of disease; including avian influenza. All flocks are tested prior to processing. Only flocks with a negative test are delivered to the processing facility.Tyson constantly monitors its flocks for the presence of disease; including avian influenza. All flocks are tested prior to processing. Only flocks with a negative test are delivered to the processing facility. While Asia’s focus is on H5N1 highly pathogenic avian influenza (H5N1 HPAI), there are other strains of avian influenza that can affect poultry.While Asia’s focus is on H5N1 highly pathogenic avian influenza (H5N1 HPAI), there are other strains of avian influenza that can affect poultry. –While these other forms are not common in commercial poultry production, they do appear occasionally. When this happens, the poultry industry works cooperatively with federal, state and local authorities to contain and eradicate the disease. –While these other forms are not common in commercial poultry production, they do appear occasionally. When this happens, the poultry industry works cooperatively with federal, state and local authorities to contain and eradicate the disease.

6 Avian Influenza: Key Points H5N1 highly pathogenic avian influenza is an animal disease. Currently there is no human flu pandemic anywhere in the world.H5N1 highly pathogenic avian influenza is an animal disease. Currently there is no human flu pandemic anywhere in the world. All Tyson flocks and 97% of the industry’s flocks are tested prior to processing.All Tyson flocks and 97% of the industry’s flocks are tested prior to processing. Consumers in the US have virtually no chance of encountering meat from a chicken or turkey infected with avian influenza.Consumers in the US have virtually no chance of encountering meat from a chicken or turkey infected with avian influenza. The virus is killed by the heat of normal cooking (165۫۫۫ F)The virus is killed by the heat of normal cooking (165۫۫۫ F)