The bug in question is Lactobacillus reuteri. It is commonly found in healthy digestive systems and helps regulate acidity levels.
这种疾病的漏洞就是罗伊氏乳杆菌。其普遍存在于健康的消化系统中，并帮助调节酸度。
英语百科
Lactobacillus reuteri
Lactobacillus reuteri is a Gram-positive bacterium that naturally inhabits the gut of mammals and birds. First described in the early 1980s, some strains of L. reuteri are used as probiotics. BioGaia AB in Sweden owns several commercially important strains and a large number of different patents for commercial usage of L. reuteri.