Answer
Streptomycin, an antibiotic discovered by Selman Waksman, revolutionized the treatment of bacterial infections. Waksman's discovery in 1943 marked a significant breakthrough in medicine, as it provided a potent weapon against previously untreatable diseases like tuberculosis. Streptomycin's effectiveness against a wide range of bacteria made it a cornerstone of antibiotic therapy, saving countless lives and paving the way for further advancements in antimicrobial treatments.