We aimed at analysis of the clinical pattern and the course of lymphonodular toxoplasmosis taking into account the intensity and duration of the illness. Ninety seven patients (69 adults and 28 children) with lymphonodular toxoplasmosis were examined. Toxoplasmosis was diagnosed by indirect immunofluorescence; the titres of antibodies of IgG and IgM classes were also estimated. Depending on the duration of the illness, three periods: early, regression of symptoms and protraction of symptoms were defined; depending on the intensity of signs and symptoms of toxoplasmosis three courses of the disease: acute, subacute and chronic were defined. The analysis showed that clinical picture of lymphonodular toxoplasmosis was characterized by swelling of various peripheral lymph nodes as well as by general clinical symptoms (88 ,7% of cases) the intensity and duration of which, to a large extent, determined course of the illness. No correlation between clinical course and duration (early and regression period) of lymphonodular toxoplasmosis and titres IFA-IgG and IFA-IgM (before therapy) was found. Pathomorphology of lymph nodes in patients with toxoplasmic lymphadenopathy is a valuable complementary examination which renders it possible to determine the period of the disease.