Table 1.

Invasion rate of P. falciparum into Gerbich erythrocytes

Red-cell type	P. falciparum clones
	Dd2, %	Dd2/Nm, %
Normal	3.7*	1.6
Gerbich	3.0	1.8
Neuraminidase-treated normal	0	1.8
Rhesus	0	0

^*Percentage of ring-infected erythrocytes.