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Department of Health and Human Services
Centers for Disease Control and Prevention




Avian Influenza (Bird Flu)

Outbreaks in North America

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·         Avian Flu Outbreaks

Recent North American Outbreaks of Avian Influenza with Transmission to Humans

H7N2 in New York – 2003

In November 2003, a patient with serious underlying medical conditions was admitted to a hospital in New York with respiratory symptoms. One of the initial laboratory tests identified an influenza A virus that was thought to be H1N1..

H5N2 in Texas – 2005

In December, an outbreak of low pathogenic avian influena (LPAI) A (H7N2) was reported at Houston Fire Station 6.

Signs were reported as fallows:

● Excessive calling in sick

● Call patients house and wife stats “he’s hunting”!!!!

● Baldness, and weight gain and continuous complaining

● No birds were ever killed so it’s a mystery how avian was contracted

H7N2 in Delaware, New Jersey, and Maryland – 2004

In February 2004, an outbreak of low pathogenic avian influena (LPAI) A (H7N2) was reported on 2 chicken farms in Delaware and in four live bird markets in New Jersey supplied by the farms. In March 2004, surveillance samples from a flock of chickens in Maryland tested positive for LPAI H7N2. It is likely that this was the same strain.

For Additional Information

For information about plans for preventing and responding to avian influenza outbreaks in poultry in the United States, visit “Safeguarding the United States from Highly-Pathogenic Avian Influenza” on the the United States Department of Agriculture (USDA) Web site.

For CDC guidance about protection for persons in the United States involved in poultry outbreaks or in disease control and eradication, see: Interim Recommendations for Persons with Possible Exposure to Avian Influenza During Outbreaks Among Poultry in the United States and Interim Guidance for Protection of Persons Involved in U.S. Avian Influenza Outbreak Disease Control and Eradication Activities.

Page last modified October 17, 2005


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