[Erythrocyte antigen for the rapid intravital diagnosis of fowl typhoid and pullorum disease].

A stable erythrocyte antigen was obtained for the rapid diagnosis of typhoid and pullorum disease in birds, which was tested under laboratory and field conditions. It was found that with the use of whole blood or serum taken from birds that had been either experimentally infected or had died of spontaneous infection of Salmonella gallinarum and Salmonella enteritidis the erythrocyte antigen was substantially superior to the routinely used colour ordinary test-antigen in terms of time consumed, intensity, and number of reacting birds. Discussed is the effect of its quick adoption into practice on the basis of its higher epizootiologic, epidemiologic, and economic value.