Since 2021, experts have seen bird flu — also called H5N1 influenza or highly pathogenic avian influenza (HPAI) — spreading "fairly quickly" across the wild and domestic bird populations and, now, among dairy cattle, Martinello tells TODAY.com.

Egg prices are surging so high that the Trump administration is pledging to step in and solve the crisis — but don’t expect relief the next time you go grocery shopping.