CD40LG and infection: Treatments did not interfere with parasite uptake by the macrophages (data not shown) and infection levels after 2 hours of incubation were comparable between the control without any stimulus (63.7% ± 12.61) and treatment with either rCD40L alone (74.3% ± 6.94) or treatment with rCD40L and anti CD40L together (66.0% ± 6.21).