Depends on the dz
This all depends on which disease the child has.
Some autosomal recessive diseases can be relatively innocuous (e.g., mcardle's syndrome), whereas others can be quite serious (e.g., cystic fibrosis
). The classification of "autosomal recessive" describes how the disease is inherited; it does not define the characteristics of the disease itself.
Answer assisted by David Escobar, Medical Student