“In 1923, d’Herelle helped Soviet scientists set up an institute in Tbilisi, present-day Georgia, dedicated to bacteriophage research; at its peak, the institute had over a thousand employees producing tons of phages a year for clinical use. Phage therapy has continued up to modern times in certain parts of the world—about 20 percent of bacterial infections are treated with phages in Georgia today—but after antibiotics were discovered and developed in the 1930s and 1940s, this treatment quickly lost momentum, especially in the West.”