Since it was first detected in birds in late 2021, avian flu has killed millions of poultry and infected animals that were previously thought to be immune, including dairy cows. The FDA has documented the H5N1 virus in animals in 48 states. Yet only 27 people worldwide have been infected since the outbreak began, and only four have been in the U.S. That suggests the risk to humans remains relatively low—for now. Why? And what early warning signs could point to an increasing risk? To find out, we spoke to Read More