墨西哥城 — — 从1928年发现青霉素到二十世纪六十年代最后一批主要抗生素进入市场，人类抵御病原菌的能力发生了极大的变革。
MEXICO CITY – From the discovery of penicillin in 1928 to the introduction of the last of the main groups of antibiotics in the 1960s, humanity’s capacity to fight pathogenic bacteria has been transformative.