Officials in Turkey have confirmed that 14 people have now tested positive for bird flu.Dozens more are having hospital tests. More than 20 are being tested in Istanbul.The city has 12 million inhabitants and is the gateway to Europe from Asia.The cases are clustered around the capital, in the Black Sea area and in the east of the country, where the deaths of three children were reported last week. Turkey’s Health Minister visited the village where three children died from bird flu last week.Recep Akdag faced angry claims that nothing had been done to warn the community about the dangers of bird flu. He urged people to stay away from poultry The World Health Organisation is also on the ground in Turkey.A spokesman says the victims seem to have caught the virus directly from infected birds.Experts fear the deadly H5N1 strain will mutate from person to person and could cause a pandemic. Humans have no immunity to the disease. Meanwhile, the six-year-old brother of the three children who died from the disease has been released from hospital and allowed home.