Certainly don't disagree. I am expecting, however, to probably need a booster shot every 6-12 months for a year or two but if it goes beyond that...it will be a little ridiculous. But I do foresee this being a yearly thing...similar to the flu shot so it will become a product of choosing whether to get it. I've never gotten a flu shot but I don't mind getting a booster for a year or two but after that...meh...but time will tell