One conjecture might be that a new drug will cure the disease in some of the people in that population, as in a clinical trial of the drug.
Dǎɣ maɣulat adoben adiqil as asafar aynayan ad- isisifir ye turhina ɣur iyad adinat ən aljamaɣat ten, sund dǎɣ urum ən nehan ən sifran.