Fatima Faruq Abdel Gauwad, from the governorate of Minya, south of Cairo, was hospitalised on Wednesday with a high fever, health ministry spokesman Abdel Rahman Shahin was quoted as saying by MENA.
The girl, who had been in contact with birds suspected of having the H5N1 strain of the virus, was treated with Tamiflu and her condition is said to be stable.
Women and children have borne the brunt of the virus because of their role in caring for domestic fowl. Egypt has been the country hardest hit by the virus outside Asia.
The government says it is conducting a vigorous campaign to combat the spread of the virus through vaccinations and raising awareness, but cases continue to appear. So far the virus has claimed 13 lives in Egypt.