Bird flu: Why ‘unusual changes’ in a human case in Canada are raising concerns
With 55 human cases in the US and avian influenza impacting bird populations across the globe, here’s a look at why scientists are closely paying attention to any evolution of this virus.
With 55 human cases in the US and avian influenza impacting bird populations across the globe, here’s a look at why scientists are closely paying attention to any evolution of this virus.
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