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Fleming grunted and sighed. Then he froze. Where this strange green mold had grown,
the staphylococci bacteria had simply disappeared. Even bacteria more than an inch from
the mold had turned transparent and sickly.
What kind of mold could destroy one of the most hearty, tenacious, and deadly bacteria
on earth? No other substance then known to man could attack staphylococci so successfully.
It took two