Translate 5 sentence to help my autistic son when we visit japan

Please translate the following into Japanese (we will hand these out if people are concerned):

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This young man has autism.

* The behavior you are witnessing is due to his neurological condition.
* I gave you this card because you seem concerned
* He is not a danger to himself or others
* Please give us time and space so that I can calmly help him through this event
* We do not speak Japanese

Thank you!