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Major Avian Influenza Outbreaks in Poultry

Last Updated: November 04, 2011

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Documented Epidemics of Highly Pathogenic Avian Influenza (HPAI) in Poultry

Years	Location	Strain	Losses
1924-1925	USA	Fowl Plague	unknown
1983-84	USA	H5N2	17 million
1985	Australia	H7N7	238,518
1994-95	Mexico	H5N2	unknown
1994-95,2004	Pakistan	H7N3	8.72 million
1996-2007	Guangdong and Hong Kong	H5N1	220 million
1997	New South Wales	H7N4	161,261
1997	Italy	H5N2	6,965
1999-2000	Italy	H7N1	13 million
2002	Chile	H7N3	617,800 +
2003	Netherlands	H7N7	30 million
2004	Canada	H7N3	16 million

Major Outbreaks of Low Pathogenic Avian Influenza (LPAI) in North American Poultry

Year	Location	Strain	Losses
1978-1995	MN, USA	various LPAI	1199 farms affected
1995	MN, USA	LPAI H9N2	178 farms
1995	UT, USA	LPAI H7N3	2 million (60 farms)
2002	VA, USA	LPAI H7N2	4.7 million (197 farms)

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