Here, apparently, was the Palaeontological Section, and a very splendid array of fossils it must have been, though the inevitable process of decay that had been staved off for a time, and had, through the extinction of bacteria and fungi, lost ninety-nine hundredths of its force, was nevertheless, with extreme sureness if with extreme slowness at work again upon all its treasures.
There are no more uses of "bacteria" in the book.
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The infection is caused by a bacteria that is resistant to antibiotics.
After taking the medicine, I eat yogurt to replace healthy bacteria.