A 15-year-old girl in Cambodia has died after testing positive for H5N1 bird flu, according to the health ministry, making it the country’s tenth human case so far this year. The teenager, from Prey Veng province, fell ill after touching dead chickens which the family was using to cook food. The chickens, along with many others, had recently died in the village. “Despite the care and assistance of the medical team, due to the serious condition of the patient, including fever, cough, sore throat, shortness of breath and fainting, the girl passed away on August 20,” the health ministry said in a…