<prompt> Regarding Shick;s test which of the following is falseErythematous reaction in both arms indicate hypersensitivityPositive test means that person is immune to diphtheriaDiphtheria antitoxin is given intradermallyTest done to find out immune status against diphteria  <response>: Schick test: intradermal test to demonstrate circulating diphtheria antitoxin. This antitoxin may be present either due to previous infection or immunization. This test demonstrates the immunity or susceptibility of a person against diphtheria. Positive Schick test signifies that the person is susceptible to diphtheria due to the absence or lack of adequate amount of circulating antitoxin. Reference: Baveja Textbook of Microbiology; 4th edition; Page no: 219, 220 