Multiple choice According to WHO, bird flu virus cannot be transmitted through food cooked beyond 60 degree celsius 70 degree celcius 90 degree celcius 100 degree celcius Reveal answer Fill a bubble to check yourself B Correct answer Explanation According to World Health Organization (WHO) guidelines, the bird flu (avian influenza) virus is sensitive to heat and is inactivated by normal cooking temperatures where food reaches at least 70 degree celsius throughout.