the low prevalence of clostridium botulinum in the lakes, marshes and waterways of the camargue.mud samples collected in june 1975 from the lakes, marshes and waterways of the camargue were examined for clostridium botulinum. the grand rhône and petit rhône were shown to contain types b and e, but of 44 samples taken from well distributed sites on the ile de la carmargue, only two (4-5%) were positive and these contained type e alone. the survey indicated a much lower prevalence of cl. botulinum than any encountered in recent surveys of inland aquatic environments elsewhere.1977319166
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