Table 3. Agglutination of infected erythrocytes of different placental Plasmodium falciparum isolates and the chondroitin sulfate A-binding isolate CS2, for serum samples obtained from pregnant women.
| Parasite isolate |
||||||||
|---|---|---|---|---|---|---|---|---|
| Serum sample | A | B | C | D | E | F | G | CS2 |
| 075 | + | − | − | − | ... | ... | ... | − |
| 116 | + | − | − | − | ... | ... | ... | − |
| 124 | + | − | − | − | ... | ... | ... | − |
| 154 | + | + | − | + | ... | ... | ... | + |
| 164 | ... | ... | ... | ... | − | + | − | + |
| 169 | ... | ... | ... | ... | + | − | − | + |
| 171 | − | − | − | + | ... | ... | ... | + |
| 175 | ... | ... | ... | ... | − | − | − | + |
| 199 | ... | ... | ... | ... | − | − | − | − |
| 205 | ... | ... | ... | ... | − | − | − | − |
NOTE. Placental isolates A-G were tested without intervening culture. Placental isolates and serum samples were obtained from Malawian women. Serum samples 116, 075, 199, and 205 were obtained from primigravid donors, and other serum samples were obtained from multigravid donors (gravidity, 3 or 4). +, positive for agglutination; −, negative for agglutination.