The CDC released more analysis of the severe bird flu case in Louisiana.

The patient's specimens had some rare mutations that are thought to increase binding in the upper respiratory tract, which could increase the risk of human to human transmission.

These mutations are believed to have been acquired late in the course of the infection. Environmental samples did not have these mutations and these mutations were low frequency. So that's good as these are evolutionary dead ends.

E186E/D in particular was also seen in the teenager in British Columbia.

Neither patient infected others thankfully.

We keep rolling the dice here. It is disturbing.