V. BACTERIOPHAGE TYPING OF SHIGELLA
22 1
1
1
1
1
4
1
1
1
1
1
1
100
300
loo 300 10
So0
300
30
10
300
300
~-~ -
7
8
394
18
68
6
9
210
368
10
13
SCL
SCL
SCL
CL
CL
SCL
< SCL
-
t
SCL
t
SCL
-
-
SCL
-
SCL
- m
SCL
- 2 + m
-
-
-
-
CL
CL
CL
SCL
SCL
-
-
-
CL
SCL
CL
CL
SCL
-
-
-
-
-
-
CL
-
-
CL
-
CL
-
SCL
-
-
-m
-
t
SCL
t
2 + m
-
-
-
-
-
-
SCL SCL -
- -
-
-
-
-
-
SCL -
-
-
-
-
1965; Szturm-Rubinsten, 1957, 1964, 1965, 1972). It also is the basis for
current attempts to refine the phage typing procedure for S. sonnei.
2. International typing set
The phages of Hammarstrom constitute the core of the proposed international phage typing set for S. sonnei (Kallings and Sjoberg, 1975). A
basic set is selected from the phages: I, 11, 111, IV, IVA, V, VI, VII,VIII,
VIIIA, IX, X, XI, XII, F12, and 766. In Table XIV, the morphology,
phage serotype, host-propagating strain, relative lytic activity, and source
of the 16 phages are indicated. Figures 4 and 5 show plaques and viron
morphology of the phages in the proposed set. Several phages are not
specific for S. sonnei but also attack Salmonella, E. coli, and Arizona
(Junghans, 1961). Of particular interest is the fact that phage XI1 lyses the