I am a type of leukocyte that sounds an alarm when infectious microbes invade your blood. I also help to break down bacteria. I help with reactions that cause allergic symptoms. I can also help repair wounds and destroy early cancer cells. What am I?
These small cells seem to sound an alarm when infectious agents invade your blood. They secrete chemicals such as histamine, a marker of allergic disease, that help control the body's immune response.
