“…We were not in a position to type the strains by the pyocine or serological methods described by Wahba (1965), but they were tested with bacteriophages available in this department (Holloway, Egan & Monk, 1960). The results, shown in Table 3, indicate that the strains could be separated into six different phage patterns, labelled for convenience A-F, and that the two fatal cases were due to dissimilar organisms.…”