The Brief

CHANDLER, Ariz. - A Chandler family is turning to the community to help with fundraising for their son.

He's one of only five kids in the country battling an ultra-rare genetic disorder.

What they're saying:

At first glance, Marco is a curious little boy like most, playing with his toys and cars. What you can't see is an ultra-rare genetic disorder.

He's been diagnosed with called beta-mannosidosis .

"The symptoms vary so much from person to person, but the one thing we know for sure is, this is progressive," Fernando Fernandez, Marco's father, said.

The disorder has only five known cases in the entire United States.

Remarkably, two children diagnosed live just ten minutes apart from each other in Chandler.

Marco was born with hearing loss and has been wearing hear

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