Rapid detection by counterimmunoelectrophoresis of antigens and antibodies in the sera of chickens infected with Leucocytozoon caulleryi.

The method of counterimmunoelectrophoresis was used to detect rapidly soluble antigens and antibodies in the sera of chickens infected with Leucocytozoon caulleryi. This method retained the specificity revealed by the Ouchterlony gel-diffusion technique, and induced no false positive reactions. Therefore, it was applicable to the serological diagnosis of chicken leucocytozoonosis, as well as the Ouchterlony technique which is used in Japan at present.