[Eosinophilia in white mice in experimental toxocariasis and recurrent ascariasis].

Twenty-five white mice were experimentally invaded by the larvae of Toxocara cati, and their blood count was followed. On the seventh day after invasion the number of eosinophil leucocytes started to increase and the maximum (28%) was reached on the twenty-first day. After 45 days the mice were newly invaded by eggs of Ascaris suum. The number of eosinophil leucocytes increased again and reached its maximum on the fourteenth day (26%). The increased eosinophilia in mice was observed until the 204th day after invasion, or until the 159th day after the new invasion. Between the number of eosinophil leucocytes and lymphocytes there was an indirect relation.