occurrence of toxigenic clostridium botulinum type c in the soil of wetlands in saskatchewan.mouse-lethal toxin identified as that of clostridium botulinum type c by antitoxin neutralization was present in cultures of 38.0% of 326 soil samples collected from 28 wetlands in saskatchewan. there was no difference in prevalence of toxicity between samples collected in spring and summer, and no relationship was evident between the occurrence of toxicity and water salinity, marsh type or water depth. there was a strong association between the prior occurrence of avian botulism in a marsh and ...19873546742
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