Low resolution pyrolysis gas‐liquid chromatography could differentiate the following groups ofClostridium botulinumand related organisms: (1)Cl. botulinumtype A. proteolytic types B and F andCl. sporogenes; (2)Cl. botulinumtypes C and D. and (3)Cl. botulinumtype E and non‐proteolytic types B and F. Toxin types A and B could be distinguished from type E and from typ
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