C. botulinum thrives in low-oxygen environments, and the ten to thirty cases reported each year in the U.S. are usually the result of eating improperly canned food, since canning removes oxygen from food to preserve it.
肉毒杆菌在缺氧的环境中也能旺盛生长在美国每年有 10-30 例,食用未正确灭菌的罐头而致中毒,因为罐装是通过去除空气来保存食物。