The children are being transferred to a hospital in Fort Worth.
The last of the patients arrived Friday morning.
Forecasters say Harvey is expected to hit the middle Texas coast late Friday into early Saturday before stalling over the state.
It may reach land as a Category 3 storm with winds of at least 111 miles per hour.
LIST: Evacuation orders issued in advance of Hurricane Harvey
EYE ON THE GULF: Evacuation routes for coastal residents
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