CD36 and infection: PIR proteins are also expressed in the human parasite P. vivax[56], [72], and although it has been suggested that sequestration of P. vivax irbcs might occur in the spleen and in other organs such as the lung during severe disease [55], [73], [74], there is no evidence for adherence of the schizonts stage to CD36 since in most infections schizonts can be found in the peripheral circulation.