Maybe if you eat enough ******, you're body is weak to some virus they speak of, and is more likely to eat more ******. Otherwise I don't buy it. I've never seen an obese person and seen them eat correctly.
And the washing hands comment in the article takes away most of it's credibility. Bacteria phobia is determental to health. There's plenty of healthy bacteria cultures found in foods like yogurt before it's pasturized. With these types of health foods, you won't need to wash your hands for everyday for the sake of immunity. You're immune system will have the ability to handle it.
It doesn't matter how many times you wash your hands if your immune system is weak. You will get sick.