FIG. 6. Lytic patterns of proper phage dilutions, routine test dilutions ( = RTD)
on selected control test strains of Shigella sonnei (see Table XV) as carried out at
the reference laboratory for phage typing of Shigella sonnei. S . sonnei test strain 2.
FIG. 6 (cont.). Shigella sonnei, test strain 3 .
on selected control test strains of Shigella sonnei (see Table XV) as carried out at
the reference laboratory for phage typing of Shigella sonnei. S . sonnei test strain 2.
FIG. 6 (cont.). Shigella sonnei, test strain 3 .