It can be, according to one study:
Here is a case in which rationality must overcome revulsion. My admiration is great for the person who first thought of such a therapy: imagination leapt over prejudice. If it had been up to me, I should have waited passively until the pharmaceutical industry developed a more effective antibiotic than vancomycin. With this method, however, the raw material is abundant and cheap and not, I presume, under patent.