A possibility of germination of clostridia (Cl. tetani and Cl. perfringens) and bacilli (Bac. anthracis, STI vaccine strain) has been studied in model experiments with native soil. Mature spores did not germinate upon contact with native soil of deferent agrochemical types. Addition of meat-pepton medium and other protein, amino acid, and sugar-containing media led only to "swelling" of spores. The data obtained support the conclusions drawn by many researches that pathogenic clostridia and bacilli do not germinate in soil.
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