That evolution part is the problem. There's a chance we'll breed superviruses in our effort to stop supergerms. As a practical matter, it's nearly impossible

That evolution part is the problem. There's a chance we'll breed superviruses in our effort to stop supergerms. As a practical matter, it's nearly impossible to breed therapeutic quantities of a virus without having a wide range of mutations present. We'll probably end up using phages because we won't have any other choice. But they won't be as safe as antibiotics.