The Greek charity taking care of the four-year-old girl known as Maria said she is well but will remain in hospital until a medical examination is completed.
The Smile of a Child charity said the girl, who was recovered from a Roma camp site in Greece "will soon be in one of our homes".
"We want to thank you all for your messages, calls and the information you have given us," the charity said in a statement.
"We would also like to thank you for the greetings and words of support to little Maria," it added.
A couple will stand trial after being charged with abducting a mystery young blonde girl found by Greek police in a raid on a Roma camp.
Greek authorities have launched a worldwide appeal to find the parents of a mystery girl found during a search of a Roma camp.