Figure 1

Equipment for isolation using the magnetic properties of ookinetes. Gametocytaemic mouse blood that has been cultured for 20 h is added to the LS column via a pre-separation filter. The speed of flow through the column is reduced by adding a needle to the base, allowing time for ookinetes to be captured in the magnetized column. Parasites are eluted with oocyst culture medium when the column is released from the magnet.