Multiple choice According to WHO, the bird flu virus cannot be transmitted through food cooked beyond 60 degrees celsius 70 degrees celsius 90 degrees celsius 100 degrees Celsius Reveal answer Fill a bubble to check yourself B Correct answer Explanation According to WHO guidelines, the bird flu virus (H5N1) is inactivated by heat. Cooking poultry to an internal temperature of 70 degrees Celsius or higher ensures the virus is destroyed.