Experts keep discussing the value of R, but what is it and why does it matter?
from BBC News - Home https://ift.tt/3d8GpYw
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Pierre Agnes' boat was discovered washed ashore near Biarritz on France's Atlantic coast. from BBC News - World http://ift.tt/2rQA...
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By MIRIAM JORDAN from NYT U.S. http://ift.tt/2HGxPRA \
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