Table 2.

Immunohistochemical Analysis of Normal and P. falciparum-Infected Human Term Placentas Using Rabbit Polyclonal Antibodies Against the Core Proteins of Placental Low-Sulfated CSPG

Placenta	% Parasitemia	Staining intensity*
		Intervillous space	Syncytiotrophoblast	Fetal blood vessel space
Normal†	−	++	++	+
Infected-1‡	3	+++	+++	++
Infected-2	8	+++	++	+++
Infected-3	21	++	+++	+++
Infected-4	31	+++	++	+++

^*Relative intensity of staining of the placental tissue sections (Figures 4 and 5) by visual score on an arbitrary scale of ++++ (high intensity) to − (background level staining similar to that with preimmune serum). 

^†Normal placenta from US women; four different placentas were analyzed, and results from a representative placenta are given. 

^‡P. falciparum-infected placentas from Cameroonian women.