[Determination of serum antibody avidity compared to infectious O-antigenemia in paratyphoid B patients].

The avidity of serum antibodies depending on infectious O-antigenemia in patients with paratyphoid B has been studied in the course of the disease. The study has revealed a faintly pronounced inverse correlation between the degree of avidity of serum antibodies and the level of infectious antigenemia. The avidity of serum antibodies in paratyphoid B has been found to increase in the course of the disease. A significant dependence of the severity of the disease on the avidity of serum antibodies has been noted.