What do mast cells and basophils do in response to an infection and where are they present?

They are similar to each other in function; they bind IgE, complement and microbial products. they also release histamine and cytokines as part of the inflammatory response. mast cells can be found in the skin, muco-epithelial tissue and the lining of the small blood vessels and nerves. the basophils circulate in the blood.