| | Conditions & Treatments | Cold & Flu At what temperature does the flu virus die? Influenza viruses can be inactivated by heating at a temperature of 167°F (75°C) or higher for at least 5 minutes, or 158°F (70°C) for at least 10 minutes. Cold & Flu - Related Articles Information About Cold & Flu Medicine Stomach Virus Tips I had the flu and now have a temp of 97 degrees what is wrong? How to Stop a Panic Attack With Cold Shower? How to Sleep With Sinus Drainage How to Beat Chronic Bronchitis When can adults start to pass the flu virus others?