Immunity (Latin means independence, integrity) – a magic word that is currently on everyone’s face. Free from illness, persecution and immunity from all hostile acts in the world: Yes, who does not want this heavenly state? Since the beginning of Covid 19 disease, however, most people have only thought of the medical content of the word as much as “free of disease”, i.e. “the immune system acquired by contact with pathogens or their poisons to be of the organism in the face of specific external attacks or the ability of the organism to eliminate certain pathogens without symptoms”. According to the lexicon.