You tried to explain that it wasn't a disease, but a new species. It had its own biochemistry, an unique physiology, its own ecological pattern beautifully entwined with our own. They communicated with each other like ants do, but at a much bigger scale, using both sounds patterned almost like a language (and why not?) and a delicate signaling system based on blood. Smart as lower primates by their own, in small groups they showed extraordinary levels of coordination.