HealthGermanyAllergies and the immune systemTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoHealthGermany02/10/2023February 10, 2023An allergy is the body's response to something that's normally harmless like cat fur. The immune system goes all out to fight the 'enemy'. But why does it overreact like this?https://p.dw.com/p/4NHOvAdvertisement