Five new outbreaks are in Missouri, a state that has lost about 4.3 million poultry over the past 30 days.
Also, the virus is confirmed in more US poultry flocks, and European officials share virus details from the UK's recent case.
In related developments, West Virginia officials suspend poultry exhibitions and Massachusetts warns of sick and dead birds across several cities.
Alongside more detections in poultry and dairy cows, the USDA confirmed more avian flu in mammals, including cats and dolphins.
Some of the latest outbreaks are in Ohio, which has lost nearly 6 million poultry over the past month.
The KFF poll, conducted earlier this month, also teases out impressions of Trump's health nominees and perceptions about the H5N1 threat.
Meanwhile, H5N1 struck more poultry farms in 11 states, affecting egg producers, broiler farms, turkey facilities, and backyard flocks.
As outbreaks intensify in UK birds, officials recently expanded the protection zone to all of England and added H5 vaccine to the stockpile.
Test positivity for flu rose to 25%, with emergency department visits very high and affecting all age-groups.
Outbreaks in commercial poultry have recently been reported in a tri-state area that makes up the Delmarva Peninsula, and regional officials are collaborating on a unified response.
