<prompt> Positive Schick test indicates that the person is:Immune to diphtheriaHypersensitive to diphtheriaSusceptible to diphtheriaSusceptible and hypersensitive to diphtheria  <response>: Positive Schick reaction: This is characterized by a local inflammatory reaction that reaches maximum intensity in 47 days in the test arm and then reduces gradually. This indicates the absence of an immunity to C.diphtheriae.Parija SC. Textbook of Microbiology Immunology. Elsevier Health Sciences; 2014. Page:219 