[The biorhythmology of primary and superinvasive opisthorchiasis. The seasonal variability in the relative mass of the parenchymatous and lymphoid organs in golden hamsters].

600 Golden Hamsters were divided into 3 groups: 1--free from opisthorchis invasion, 2--once infected, 3--repeatedly infected. Seasonal variability of liver, portal and mesentery lymph node and adrenal gland relative mass was investigated in winter, spring and autumn. Diurnal stereotype variability of parenchymatous and lymphoid organ relative mass is associated with a season and invasion number, and in a considerable degree is reflected in the meaning of average diurnal index.