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20 votes
The most active period of research into antibiotics was:

The 1920s
The 1950s
The 1970s
The 1990s

2 Answers

12 votes
The 1950s-1970s, it was also called the “golden era of discovery of antibiotics classes”
User Sebyddd
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5 votes
1950 I believe possibly 1970
User Bebingando
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