Immunoelectron micrographs showing localisation of the S-antigen in 0.05% glutaraldehyde-fixed, parasitised erythrocytes, which were embedded in LR White resin (colloidal gold 10 nm). a Immunolabelling of the S-antigen is clearly visible within the parasitophorous vacuole, b No labelling is evident on the parasitised erythrocytic cytoplasm. M, merozoite; P, parasite; P VM, parasitophorous vacuole membrane. Bar = 0.5 mm.

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.