Fig. 3From: Purification of Cyclospora cayetanensis oocysts obtained from human stool specimens for whole genome sequencingComposite microscopy image of purified oocysts before (a) and after (b) 15 cycles of freeze and thaw. Black arrows = intact oocysts; black arrowheads = oocysts, partially or completely empty; white arrows = sporocysts; white arrowhead = empty sporocyst. Scale bar = 10 μmBack to article page