Immunoelectron micrographs confirming localisation of two rhoptry-associated antigens. Bar=0.2 mm. Parasitised erythrocytes were fixed with I% glutaraldehyde prior to embedding in LR White resin. Gold labelling (15 rim) is clearly visible on rhoptry organelles, showing location of QF3. (Mab 7H8/50).

Ingram LT, Stenzel DJ, Kara UA, Bushell GR. Localisation of internal antigens of Plasmodium falciparum using monoclonal antibodies and colloidal gold. Parasitol Res. 1988;74:208-15.