Félix d'Hérelle

Félix d'Hérelle was a French-Canadian microbiologist who independently discovered bacteriophages and pioneered their use against bacterial infections.

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Bacteriophage: A virus that infects and replicates within bacteria. D'Hérelle named these bacterial viruses and argued they caused the clear zones he observed.
Phage therapy: The treatment of bacterial infections using bacteriophages that target disease-causing bacteria. D'Hérelle pioneered this approach and promoted it as an alternative to other treatments.
Giorgi Eliava: A Georgian microbiologist who founded a Tbilisi institute for bacteriophage research and treatment. Eliava collaborated with D'Hérelle to build a center devoted to phage research.
History of virology: The development of scientific knowledge about viruses and their effects. Bacteriophages helped establish viruses as agents that infect cells, a major step in virology.
Shiga dysentery: A severe intestinal infection caused by Shigella dysenteriae. In 1917, investigating dysentery in soldiers led D'Hérelle to observe bacteriophage activity.
Dysentery: An intestinal illness marked by diarrhea, often with blood or mucus. D'Hérelle's early phage treatments targeted dysentery outbreaks.
André Gratia: A Belgian microbiologist whose work helped clarify the nature of bacteriophages. Gratia's research contributed to the scientific debate surrounding phage discovery.
Bacteriophage research: The study of viruses that infect bacteria, including their biology and uses. D'Hérelle's work helped make phages experimental tools and objects of biological study.
Frederick Twort: An English bacteriologist who reported a transmissible bacterial-destroying agent in 1915. Twort described a similar phenomenon before D'Hérelle, but did not identify it as a virus.
Cholera: An acute diarrheal disease caused by the bacterium Vibrio cholerae. D'Hérelle investigated phage treatment during cholera outbreaks, including in India.