Not an expert on this, but remission is defined as: > a temporary diminution of the severity of disease or pain. My understanding is that after the treatment,

Not an expert on this, but remission is defined as: > a temporary diminution of the severity of disease or pain. My understanding is that after the treatment, and while in remission, people would need to maintain a healthy lifestyle to avoid relapse. It's still early days for this treatment so I'd guess that they're being cautious with their language.