a: virus ~
b: a piece of Velcro
What:
"Scientists have long recognized that not all strains of the flu find humans attractive targets. Some prefer pigs or birds. It turns out that the flu virus is like a piece of Velcro hunting for a companion swatch of Velcro to attach itself to."
Useful?
Writer: Stephen Smith
LCC:
Where:
Date: Feb 27 2014 7:57 PM
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