health.wusf.usf.edu13d
It's like 'dead birds flying': How bird flu is spreading in the wild
The virus evolved so some wild birds are able to migrate just far enough to reach ... of dead birds don't fly to this new ...
WUFT13d
It's like 'dead birds flying': How bird flu is spreading in the wild
The virus evolved so some wild birds are able to migrate just far ... to this new virus that seems to be a bit more like dead bird flying," explains Erik Karlsson, head of the Virology Unit ...
Houston Public Media13d
It's like 'dead birds flying': How bird flu is spreading in the wild
Traveling in infected wild birds, the virus took off and jumped ... UHART: It was just, like, birds flying, you know, falling out of the sky dead. So, yeah, I mean, it is very dramatic.