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But scientists noticed hints that faecal transplants for C. difficile also seemed to get rid of superbugs.

"We know that potentially one in three women will experience some urinary incontinence and potentially one in four women will experience some level of faecal incontinence throughout their life. That's huge numbers – it's really common."

The mysterious balls that forced the closure of several beaches in Sydney last week were found to contain saturated acids, E. coli and faecal bacteria, authorities say.

"That I should drown in my own faecal vomit because it is too much hassle for the judges to deal with?"

The women, who had all stayed with their children at the hospital, were accused of making their children ill by administering unprescribed drugs and by deliberately contaminating their feeding lines with faecal material.