Smith G R, Moryson C J
J Hyg (Lond). 1977 Feb;78(1):39-41. doi: 10.1017/s0022172400055911.
In 1975, 25 soil samples were collected from the London area. Of these, 20 were obtained 200-300 yards from 20 lakes that had been shown in 1974 to contain mud contaminated with one or more of types of B, C, D, and E of clostridium botulinum. By means of a technique comparable with that use for the examination of mud, the 20 soil samples were found negative. The remaining 5 soil samples, obtained from sites that were not in close proximity to lakes, were also negative except for one that contained type B.
1975年,从伦敦地区采集了25份土壤样本。其中20份是从20个湖泊200 - 300码外采集的,这些湖泊在1974年已被证明含有被肉毒梭菌B、C、D和E型中的一种或多种污染的淤泥。通过一种与检测淤泥所用技术类似的技术,发现这20份土壤样本为阴性。其余5份土壤样本是从离湖泊不近的地点采集的,除了一份含有B型菌外,其余也均为阴性。