The child, Hulya Kocyigit, was the sister of the other two victims.
The Turkish Health Ministry also says it has identified the virus in two other people who had come into contact with sick chicken. The new test results bring the number of people infected with the virus in Turkey to at least 18.
Health officials say all of the victims probably caught the virus from direct contact with infected birds. They say there is no evidence to suggest the bird-flu virus has mutated into a form easily transmittable among humans.
Despite the spread of bird flu to Turkey, the World Health Organization says Asia remains the epicenter because of contact between humans and poultry is more commonplace there.
At least 78 people have died of bird flu since 2003, most of them in Southeast Asia and China.
(AP, AFP, Reuters)
RFE/RL's World: 2005 In Pictures
A slideshow of images related to the top news stories of 2005 from throughout RFE/RL's broadcast region with links to RFE/RL's reporting.