This article originally appeared on USA TODAY: New bird flu variant found in dairy cattle. Can H5N1 be transmitted to humans?

A variant of H5N1 bird flu that has circulated widely in wild birds — and in several instances led to severe illness in humans — has turned up in dairy cattle for the first time. The findings were ...

Bird flu has always worried pandemic planners, but a new twist is raising the stakes: scientists are now tracking variants that can keep multiplying even when a human body turns up the heat. A strain ...

A dairy worker in Nevada has tested positive for H5N1 bird flu, the first human case identified in the state. The newer variant of avian influenza that recently infected dairy cattle in Nevada has a ...

The strain of bird flu is distinct from what has previously been found in dairy cattle. The finding raises some worrying questions — and... New bird flu variant in cattle adds to concerns about ...

(CNN) -- The newer variant of avian influenza that recently infected dairy cattle in Nevada has a genetic change that's thought to help the virus copy itself in mammals -- including humans -- more ...