President Biden sits down for interview with George Stephanopoulos l ABC News exclusive 
Bird flu is spreading around the world.
Australia’s first human case of this outbreak was reported this month and farms in Victoria have been hit by the virus.
But how concerned should we be about the possibility of a human pandemic?
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Professor Raina MacIntyre, Professor of Global Biosecurity at the Kirby Institute, UNSW
The Pulse of Washington D.C.
