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Down syndrome is a genetic condition that happens when a child is born with an extra chromosome. This added chromosome changes how the baby’s brain and body develop and leads to differences in physical, mental, and social development.

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Hi! My name is Lesley. I am a virtual agent programmed to help you. If you would like to speak to a live agent, please call 617-355-6000.

I am unable to answer specific questions regarding your child's case, including appointments and conditions/diagnosis. Please contact your physician's office.

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