In the oceans alone, every single second, one hundred thousand billion, billion cells get infected by viruses. So many, actually, that up to 40% of all bacteria in the oceans are killed by virus infections every single day. And even more, even your most intimate self is not safe from viruses: About 8% of your DNA is made of remnants of viral DNA. We’ll stop with the large numbers now because nobody can picture this stuff anyway. Let us just agree that there are a whole lot of viruses on earth and they seem to be doing quite all right.