I have been taking 10k units daily for about 12 years. Wife 5k and three kids 5k in that time and among us there have been 0- that’s no, zero, virus or colds. Wife and I both started when we were very sick with, not H1N1 but one that was laying low much of the town for 2 to 4 weeks. We started with the formula of 900 units per pound of body weight in one dose. Both of us were quite free of it and feeling good 8-10 hours later. I make sure the widows at church have a three month supply of D3 @ 5000day every fall. They stay healthy through the winter.
So simple and so amazing. Many doctors never mention it. True flu and virus prevention.
Also, I have been getting IVs with vitamins and minerals and trace minerals since I had surgery. EVERYONE having surgery or even bad injuries should get these nutrients in their IV if they can take nutrients by mouth. But no one ever does in hospitals. Don’t we want our bodies in TOP shape to heal well?
Stomach flu in the house or school or office? Probiotic liquid (say, from fermented vegetables like pickles or real sauerkraut - not vinegared), even a teaspoon, might prevent you or your child from coming down with it. Adults might also pop a real probiotic capsule.
Glad you care for the widows at your church whose docs are NOT telling them about the benefits of having enough D3 in their bloodstreams.