There have been outbreaks of the H5N8 strain of avian flu in Russia and India recently and a Canadian scientist says that highlights the urgent need to develop a universal influenza vaccine. Bird flu is prevalent among fowl and may jump to humans, but it is not transmitted from human to human, at least not so far. But viruses mutate and resulting changes could make bird flu transmissible between people.

 

 

Credit: CDC Eric Grafman

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