Some other things to add that were posted on the Froome and/or Gas6 thread:
1) Schistosomiasis affects hemoglobin but not red cell count (hematocrit). Antigens (released proteins) from the eggs are thought to react with the hemoglobin, inactivating it, with the result that individual red cells are less effective at oxygen binding and transport. The body’s immune system reacts with the antigens, which results in many of the symptoms.
2) The overall (hematological) result is reduced hemoglobin, and reduced hemoglobin/red cell ratio, which should be picked up by the biopassport. An article that was linked on one of those threads found an average reduction of hemoglobin of about 15%. To put this in perspective, the effect of such a reduction on oxygen transport would be like reducing hematocrit (composed of red cells with normal Hb levels) by the same 15%, say, from 45 to around 39. This might in turn reduce V02max roughly 10%, say, from 80 to 72 (this relationship is far more variable, though, and could be much more or less). Following treatment with praziquantel, one would expect an increase in hemoglobin to normal levels.
3) As I discussed at length on these other threads, IF Froome indeed has been chronically infected with the disease, as he seems to be claiming, the lowered hemoglobin should stimulate EPO synthesis and increase reticulocytes. Another effect that ought to be seen in the passport. As I speculated before, a chronic low level of these antigens could conceivably result in a more or less permanent elevation of EPO and retics. If he were then to be treated successfully, there might be a period when he had the advantage of this elevated EPO without ongoing inactivation of hemoglobin.
4) Should be noted that one of the posters, Patswana, claims to treat tropical diseases, and posted some useful information. Another poster, whose name I forget, said he had the disease, and was cured with a single treatment. Said the symptoms were relatively mild.