As a child, I had every childhood disease known to man and I survived them. I have a cast-iron immune system. Never have had a flu shot and haven't needed one because I've never had the flu. I have always thought that the shots are dangerous and counter-productive. The Vit.D3 is the best thing to take, along with Vit.C, to keep the winter bugs away.
I’ve had a poor immune system since early childhood. My mother was an alcoholic and smoked but I have no idea if that contributed or not.
I do a lot to support my health and overcome things that come along, but each person is an individual - some just have stronger constitutions, some less, and what we’ve been through in the past - poor choices by parents, by ourselves, or things that just happen (and emotional stress can damage health, too) - we each have a different hand of cards, so to speak.
I am strongly opposed to vaccines for a number of reasons, especially flu vaccine.
Anyway, the swine flu isn’t over yet. Seems to be increasing in the SE states and TX right now.