Abstract: Soluble protein components of blood stages of Plasmodium vivax,P.falciparum,P.cynomolgi,P.berghei and P.yoelii were extracted with 1% NP-40 and their similarities and differences were compared by means of SDS-PAGE.After electrophoresis was performed,the gels were stained with silver and scaned by denstometric tracing. It was observed that the electrophoretic patterns of these plasmodia protein extracts were quite different in the number and positions of bands,but showed two common bands with molecular weigh...