by Madeline McCurry-Schmidt, La Jolla Institute for Immunology Credit: Pixabay/CC0 Public DomainCow’s milk allergy is the most common type of food allergy in children—it’s also the weirdest. In all allergies, a person gets sick when immune cells overreact to normally harmless molecules, such as milk proteins, peanut proteins, or cat dander. Immune cells think the offending...
