H5N3 is a subtype of the species Influenza A virus

Influenzavirus A

Influenza A virus causes influenza in birds and some mammals and is the only species of Influenzavirus A. Influenzavirus A is a genus of the Orthomyxoviridae family of viruses. Strains of all subtypes of influenza A virus have been isolated from wild birds, although disease is uncommon...

 (sometimes called bird flu virus).

H5N3 was identified in Quebec

Quebec

Quebec or is a province in east-central Canada. It is the only Canadian province with a predominantly French-speaking population and the only one whose sole official language is French at the provincial level....

 in August 2005 and in Sweden

Sweden

Sweden , officially the Kingdom of Sweden , is a Nordic country on the Scandinavian Peninsula in Northern Europe. Sweden borders with Norway and Finland and is connected to Denmark by a bridge-tunnel across the Öresund....

 in October 2005.

2009:

H5N3 virus

Virus

A virus is a small infectious agent that can replicate only inside the living cells of organisms. Viruses infect all types of organisms, from animals and plants to bacteria and archaea...

 was identified at a La Garnache

La Garnache

La Garnache is a commune in the Vendée department in the Pays de la Loire department in the Pays de la Loire region in western France.-References:*...

 farm in France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

in late January. 90 birds were found dead between 29 January 2009 and 31 January 2009. The remaining stock of 4932 birds was destroyed on 1 February 2009.