Viral infections are on the rise and spreading across the globe.
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Avian influenza infections in the US have been rising over the past year, but there’s no evidence so far that people can infect each other with this strain of the virus.
Officials have confirmed eight new outbreaks in Michigan poultry flocks since mid-December.
The H5N1 virus has infected about 900 people since 2003, and more than half of them died. But so far there is no evidence of human-to-human transmission.
