 So we know what it does. We know what it doesn't do. But it kills all bacteria. Now, that's very interesting. It kills all bacteria, fungus and yeast and viruses. Penicillin only kills two bacterias, okay? Out of all the hundreds of bacterias, penicillin only kills two. Colloidal silver kills them all. And so I carry them with me in my briefcase. I have them at home.