Black Death 'spread by humans not rats'
Human body lice, rather than rat fleas, spread plague during the Black Death, a study simulating the outbreak suggests.
from BBC News - World http://ift.tt/2Dl0PPw
from BBC News - World http://ift.tt/2Dl0PPw
Black Death 'spread by humans not rats'
Reviewed by Daily Trends Times
on
January 16, 2018
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