english: New therapeutic techniques  like phages and vaccines face the same fundamental problem  as traditional antibiotics: if they’re working well,  they’re used just once, which makes it difficult to make money.
non_english: Nove terapeutske tehnike poput bakteriofaga i vakcina suočavaju se sa istim fundamentalnim problemima kao tradicionalni antibiotici: ako funkcionišu, iskoriste se samo jednom, što zaradu čini slabom.