

No one’s saying they’re not. But Down syndrome also predisposes kids to cataracts, hearing loss, heart disease, leukemia, thyroid problems, severe constipation, and gum disease. It’s a disorder that causes a litany of health problems, and it’s not fair to saddle a person with potentially life-threatening conditions on the grounds that many with the disorder are nice people.
Hard to say at this point. This early testing was on cells in a petri dish. It will take a lot of study to convert this to a treatment on living humans and determine the best time to intervene.