Signs of possible drifting of wild influenza virus away from vaccine virus in eastern Washington

[Emily]

http://www.union-bulletin.com/local...cle_6b0a3406-d37b-11e6-86fd-df6b7f392f69.html

[h=1]Washington state flu deaths rise[/h] [h=2]The 2016-17 influenza season so far has claimed 16 lives, mostly elderly people.[/h]

• U-B and wire reports
• Updated 13 hrs ago

... Although Walla Walla County has had no flu-caused deaths, Meghan DeBolt, director of the county?s Department of Community Health, said there are currently three active type A flu cases among people who had been vaccinated against the disease.
That is cause for concern, she said, because it could mean the viruses vaccinations were formulated to resist are ?drifting,? or changing in mid-flu season.