Since there is a 25 per cent chance that a child will have the disease if both parents carry the sickle-cell trait , it is advisable not to conduct marriage between people who share the trait .
Kunapachatï wawanakax aka usumpik ukhax sapa patakatx 25 chacha warmiw wawanakapar piykatayapxi , ukatakix askiw aka usun jaqinakan jan jaqichasipxañapaxa .