SUMMARY: Thirty strains of Bacillus polymyxa were isolated from soil, vegetation and water, and nine strains were received from other sources. At the time of isolation the new strains were of a white or sporogenous colony type, but rapidly produced asporogenous and rough variants. Four bacteriophages were isolated from a variant of a soil strain and from soil and sewage. These differed in host-strain specificity, particle size, heat resistance, citrate sensitivity and serological reactions.
No takes yet. Share an insight, caveat, or question.
Francis et al. (1949) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: