Inhibition of the in vitro growth of plasmodium falciparum by human polymorphonuclear neutrophil leucocytes

Polymorphonuclear neutrophil leucocytes (PMN) from children with acute Plasmodium falciparum malaria significantly inhibited parasite growth in homologous and in non-immune sera. Phagocytosis of schizonts in vitro was observed. PMN from uninfected children and uninfected adults had no effect on parasite growth.