A doctor-researcher in residence at a private institution for mentally retarded children discovers that the children in one of the dormitories have dysentery, whereas those in the other dormitories do not. She decides to experiment with the children, both to see what had caused this phenomenon and to study the effects of dysentery and its various cures upon children in general. She sets up a scientific study with control groups (in which some students receive medication and some do not), and part of her experiment involves infecting healthy children with dysentery germs. The institution for which she works has a long waiting list, and the doctor takes advantage of this, admitting only those children whose parents will sign a release allowing her to conduct experiments upon them .

What are the ethical implications of what the doctor is doing? Should such experimentation be allowed? Why or why not?