Before the age of modern antibiotics, phages were used to treat
some bacterial infections. But once antibiotics became widely used,
only countries like the former Soviet Union continued to use them.
Now that antibiotic resistant strains of bacteria are becoming more
common, interest in phage therapy is spreading. Indeed, it is said
that there may now be bacteria that only phages can effectively
treat. Thus leading to a growing flow of people to the former Soviet
bloc countries for treatment. YMMV. Use at your own risk. This is
not an endorsement. I am not a doctor nor do I play one on TV.
Insert disclaimer here.