Toxoplasma gondii (RH strain) tachyzoites were maintained by serial passages in MARC-145 (Meat Animal Research Center-145) layers. The infection rate in MARC was 40-50% in all experiments. Therefore, free-released T. gondii tachyzoites were harvested from MARC supernatants, pelleted (400 × g, 12 min), counted in a Neubauer chamber, suspended in HBSS and used for bovine PMN confrontation. All experiments were performed at an MOI of 1:2 (bPMN:parasites).
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