<prompt> Positive shicks test indicates that person is :Immune to diphtheriaHypersensitive to diptheriaSusceptible to diptheriaCarrier of diphtheria  <response>: Shicks testIntradermal test which provide information regarding :a. Immune status, b. Hypersensitivity susceptibility to diptheria toxin before giving active immunization. In one arm toxin is injected test arm and in other arm heat inactivated toxin is injected control arm. 