There wouldn't any profit for pharma giants. You can't patent bacteriophage, they're the commonest life form on Earth (if you consider viruses to be a life fo

There wouldn't any profit for pharma giants. You can't patent bacteriophage, they're the commonest life form on Earth (if you consider viruses to be a life form), they're extracted from unwanted waste (raw sewage) and they reproduce themselves in bacterial cultures. This is why their use continued in the Soviet Union when they fell out of favour in the West. Profits don't matter under communism.