An NPR reporter collected samples of raw milk from 4 farms in Texas, and asked a USDA-authorized lab to test for bird flu. The lab refused to do it, because the farms wouldn't give them permission to test, even though permission isn't required. Wow.
https://www.npr.org/2024/05/15/1251647612/a-bird-flu-outbreak-among-dairy-cows-sparks-new-warnings-about-unpasteurized-mil