Not any current standard phage mixtures, but especially for lung disease they're an active area of research. Delivery mechanisms seem to be a pretty solved/rela

Not any current standard phage mixtures, but especially for lung disease they're an active area of research. Delivery mechanisms seem to be a pretty solved/relatively-trivial problem. See e.g. https://www.sciencedirect.com/science/article/pii/S1569199317308147 https://www.sciencedirect.com/science/article/pii/S156919931... In this particular case, they found a phage for the particular infection, but at too late of a stage - most of the development I've heard of has been less about basic research and more about building institutional processes for quickly finding existing predators of a given bacterium. (Which, I agree, is a lot more expensive and risky than an antibiotic if you can find one that works.)