Flu viruses take the summer off to go travelling

Not Exactly Rocket Science
By Ed Yong
Sep 14, 2009 7:00 PMNov 5, 2019 12:12 AM

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This article is reposted from the old Wordpress incarnation of Not Exactly Rocket Science.

It's not just us who like to go travelling in the summer - flu viruses do it too. After a busy winter of infection, they turn into the gap-year students of the virus world. They travel round the world, meet new viruses, swap genetic material, and returning back, changed and unrecognisable (at least to our immune systems).

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