Iran has culled 1.4 million poultry birds in a province east of the country to contain the spread of the severe bird flu, known as H5N8. Head of Iran Veterinary Organization said on Saturday that a bulk of the birds slaughtered over H5N8 fears had been concentrated in industrial poultry units in South Khorasan province. Ali Asqar Makanali said that virus spread fast in an area of 15 kilometers around ...