FIG. 1. Plaque morphology and electron microscopy of typing phages of the proposed international
typing set for S. flexneri. Preparation of microscopic preparations described by Krzywy and Slopek
(1974). Classified by morphological type.
Phage F1 for S. flexneri ( x 240,000). The virion head is of a regular icosahedron shape, the tail
conical. Type A-1-1.
typing set for S. flexneri. Preparation of microscopic preparations described by Krzywy and Slopek
(1974). Classified by morphological type.
Phage F1 for S. flexneri ( x 240,000). The virion head is of a regular icosahedron shape, the tail
conical. Type A-1-1.