The problem with children is that they are very sensitive to doses of meds.
Blood Flukes are easily treated using Praziquantel, Albendazole, Vitamin D, Calcium.
These flatworm meds cause blood flukes to jump out of the body, leaving a small dot of blood. The dosing period of blood flukes is not long. They are one of the easier parasites to treat.
But what is the proper dose? Children often are more sensitive to doses than teenagers or adults.
There are also legal issues with treating children.
You may find that even Mayo will not touch this situation.