WHO says Bird flu risk to humans an ‘enormous concern,’ but what should you know?

As the H5N1 bird flu continues to spread globally among different mammals, the World Health Organization’s chief scientist, Jeremy Farrar, is warning that the risk to humans remains an “enormous concern.” As Global’s Sean Previl reports, at this time there is a very low risk for humans and no need to change their day-to-day activities, but there are still precautions that can be taken globally.

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