Avian Influenza in the United States

In early 2004, there were detections of low pathogenic avian influenza in the eastern United States and a detection of highly pathogenic avian influenza in Texas. There have been no further detections of either disease in the United States.

News

05-12-04	USDA Funding Approved for Avian Influenza Prevention Program
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Trade Information

09-29-04	Avian Influenza Trade Ban Status Report
02-23-04	U.S. Returned Good- (Returned U.S. Origin Poultry Products and By-Products) Effective 2-17-04)

Situation Reports

04-09-04	H5-H7 Avian Influenza Situation Report
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General Information

01-04	Biosecurity Is for the Birds: Practice Good Biosecurity and Keep Your Birds Healthy! PDF
Abril de 2004	Bioseguridad para las aves ¡Aplique una bioseguridad adecuada y mantenga sus aves sanas! PDF
02-02	Highly Pathogenic Avian Influenza Factsheet
02-02	Questions and Answers: Highly Pathogenic Avian Influenza
08-01	Highly Pathogenic Avian Influenza: A Threat to U.S. Poultry (leaflet)
04-02	Low Pathogenic Avian Influenza Virus
Diciembre 2002	Virus de la influenza aviaria de baja pathogenicidad
06-02	Avian Influenza—Animal Disease Alert

H5 and H7 occurrences in the United States, 1997 to present

Low Pathogenic Avian Influenza viruses are endemic in wild waterfowl and migrating bird populations worldwide. Therefore, it is not a disease we can expect to totally eradicate. Consequently, each year we occasionally find some occurrences of low pathogenic avian influenza in domestic poultry, particularly where birds are raised outdoors. Such occurrences can largely be prevented from occurring in poultry through good biosecurity practices. This is a different (though similar) disease from the high pathogenic avian influenza that is affecting birds and some people in Asia. The U.S. has not had an incidence of high pathogenic avian influenza for twenty years.

The following is a listing of occurrences of interest of low pathogenic avian influenza in the United States:

1997	UT	H7N3 in turkey flocks
1997-98, 2001	PA	H7N2 in several layer flocks
2000	FL	H7N2 in a backyard live bird market flock
2001	MA	H7N2 in a live bird market
2001	CT	H7N2 seropositive chicken farm that supplied birds to the live bird markets
2001-02	PA	H7N2 found in 7 commercial flocks
2002	VA, NC, WV	H7N2 throughout the Shenandoah Valley poultry production area
2002	TX	H5N3 in one layer flock
2002	NY	H5N2 and H5N8 in a backyard duck flock
2002	ME	H5N2 in a duck flock
2002	MI	H5N1 in a turkey flock
2002	CA	H5N2 in a turkey breeder flock
2002	NY/NJ	H7N2 in the live bird markets
2003	CT	H7N2 in two layer flocks
2003	RI	H7N2 in a layer flock

For More Information

on human health
Centers for Disease Control and Prevention

on avian health
Delaware Department of Agriculture

Pennsylvania Department of Agriculture

New Jersey Department of Agriculture

Texas Animal Health Commission