A patient who has at least one good copy of the gene is much more likely to escape the disease or experience it in a relatively mild form.

一个病人有至少一种好的基因遗传，更有可能避免这种疾病或者遭遇此疾病时症状会比较轻微。

youdao

It is also possible that a proportion of girls with mild autistic traits lose those traits early on and so escape detection by 8 years of age (the age of the children in the CDC study).

CNN: How girls and boys differ when it comes to autism