I'm going to see the doctor when I've recovered, to see why my immune system keeps on losing against these viruses. When you're keeping a healthy diet and eating all the recommended foods, and you wash your hands before eating, and you are still picking these viruses up then something must be wrong. Maybe the doctor can provide some sort of vitamin supplement, even though I eat foods that contain vitamins that ward off colds.
But I don't want a diet lecture here, saying "oh eat this, not that, avoid this, eat plenty of that" because whatever I eat (fruit, vegetables, meat, whole grains, water, etc) I still come down with these colds. Maybe I've got cancer. That's all I need.
You stated in another thread that you bite your nails. No one washes their hands before they bite their nails which is the most likely vector for catching the flu, besides being trapped in a bus with sick people coughing.