[Immune reactions in coccidiosis of chickens and their practical applications]

In the framework of systematic control of the fowl coccidiosis the resistance problem of coccidia strains against the coccidiostatics, which is increasing in dimension, is of great importance at present. In recent years a lot of opinions had been intensively expressed in the international publications about the immunological aspects as an alternative solution. The most important immunological fundamental knowledge about this is explained and the tendency of its practical application is shown.