Avian flu typically spreads between wild and domestic birds but can spread to other animals and people. There have now been more than 40 confirmed human cases in the United States, according to the Centre for Disease Control,

Canada’s Public Health Agency has confirmed that a British Columbia teenager hospitalized last Friday is the country’s first ever human case of domestically acquired avian flu. The

Federal health officials have confirmed that a B.C. teen who is currently in hospital has Canada's first human case of H5N1 avian flu.