Bugs "R" us!
Even as microbiologists we often forget that "bugs 'R' us! I recently read in a major paper on antibiotic resistance that stated that normally there are about 5 microorganisms in and on our bodies for every cell that makes up our bodies. When I googled to see how many cells in the body I found estmates of 50 to 100 trillion - so all of us have a lot of bugs. Shortly thereafter I heard a scientist on a science radio show talk about the same subject. The point was made that if we could take away the body cells; but keep the bugs in place and could stain them so they are visible, the body outline would remain.
Also, if you google virus therapy, you will see that pahge therapy is only a small part of the field. Viruses have been used to prevent and cure disease for a long time. Think of small pox vaccine - a live virus. Polio and flu vaccines can be live and killed viruses and there is considerable research to use live viruses to treat certain kinds of cancer.
Please remember that most classical phage therapy uses lytic viruses to minimize mutations and integration of the phages.
As far as I know only the wound care center in Texas is actually using phage therapy in the USA, however, Phage International in California works with the Phage Tharapy Center in Tbilisi, Georgia.