Absence of toxin gene transfer from Clostridioides difficile strain 630Δerm to nontoxigenic C. difficile strain NTCD-M3r in filter mating experiments

在滤器交配实验中，艰难梭菌菌株 630Δerm 未向无毒艰难梭菌菌株 NTCD-M3r 转移毒素基因