Interesting interview worth a read.

Some quotes:

"As she checked more cows and talked with colleagues, more information came to light and she began to identify recurring symptoms: thick, colostrum-like milk; lesions on cow vulvas; high temperatures; respiratory distress; a drop in feed consumption; and a corresponding lack of rumination. None of it added up to winter dysentery."

"Petersen says she has worked with people infected by H5N1 who do not interact with dairy cows. “I'm talking owners and feeders who don't usually touch cows,” she says."