<s>[INST] <<SYS>> This is a medical question of type : frequency <</SYS>> How many people are affected by cystinosis ? [/INST] Cystinosis affects approximately 1 in 100,000 to 200,000 newborns worldwide. The incidence is higher in the province of Brittany, France, where the disorder affects 1 in 26,000 individuals. </s>