Hashtag
1. The **discovery of penicillin** by Alexander Fleming in 1928 marked the beginning of the antibiotic era. This discovery is a landmark in the history of which field?
2. The **discovery of antibiotics** in the 20th century, starting with penicillin, had a massive cultural impact. Which of the following is a key effect of this discovery?
3. The **invention of the vaccine** by Edward Jenner in the late 18th century was a major turning point in public health. He developed the first vaccine against which disease?
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