"Do not think penicillin is a cure-all," said penicillin's discoverer, Sir Alexander Fleming on THE MARCH OF TIME last week. "It has an extraordinary effect on many of the common microbes . . . but on others it is quite inactive. The publicity given to penicillin has caused me to receive thousands of letters from sufferers from tuberculosis and other diseases which penicillin does not touch." But as Sir Alexander long ago predicted, another mold-produced antibioticstreptomycin (TIME, Jan. 29)has given promise of succeeding where penicillin fails. Recent encouraging news of streptomycin's performance:
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