Genetic editing might cure stuttering, I did some research on why stuttering occurs. The mutation of GNPTAB, GNPTG, NAGPA and AP4E1 genes causes stuttering. Genetic mutations can’t be cured with vaccines, but stuttering and its effect can be mitigated. Maybe in the future genetic editing technology will be safe enough to put us all through such procedure. But that’s distant future (still within our lifetimes). Additionally there might be some complications that might result in other, fatal genetic mutations, so I would recommend going to a a speech therapist.