I want to add something about amoeba that lives in the intestines. These amoebas live on the probiotics that are in the intestines. One proof of that is the fact that Tetracyclin works against Entamoeba not by killing it directly rather than killing the bacterias that feed him. He starves to death if all the bacteria are dead.
So other than S.boularddi which is a yeast or Bacillus species which are known to have anti parasites activity, I wouldn't suggest probiotics to anyone with parasite infection.