<prompt> WHICH of the following cell is most commonly associated with chronic allergic asthma ?TH17TH1TH 2TH 4  <response>: TYPE 4 HYPER SENSITIVITY IS MEDIATED BY T CELLS : TH 1 CELLS - macrophages tb, contact dermatitis TH2 CELLS- esinophills chronic allergic asthma and rhinitis TH 17 - macrophage and neutrophil atopic dermatitis , rhematoid ahritis HSR 4 3 REF : ROBBINS 10TH ED 