Did Jesus heal a person with a chromosome defect? Is there anywhere in the bible a hint or something saying Jesus healing someone with a chromosome defect? For example somebody with a Down Syndrome or similar.

What about today's healings? Was it ever recorded a Down Syndrome person miraculously healed?

If not what is the explanation for why this type of handicap God doesn't choose to heal? (for this sentence I need a Catholic view).
The Bible was written down about two thousand years ago, when nothing was known about "Chromosome defects". So the Bible writers didn't record whether any of the people Jesus healed had chromosome defects. Nor did they give us enough information to work our for ourselves if they had them.