 The most detailed publications documenting phage therapy have come from Stefan Ślopek's group at the Institute of Immunology and Experimental Medicine of the Polish Academy of Sciences in Wroclaw.Ślopek wrote six papers on phagotherapy in which he discussed the efficiency of bacteriophages against bacterial infections including those caused by multi-resistance mutants.In one paper, Ślopek describes the effect phages had on his patients suffering from Sepsis caused by bacterial infections.