What Are Phages?

Bacteriophages, or phages, are viruses that specifically infect bacteria. They are widely present in soil, water, and animal intestinal tracts. Since their discovery in 1915, phages have been studied for more than a century.

Their key feature is precision: like “one key for one lock,” each phage targets specific bacterial hosts.

How Bacteriophages Lyse Bacteria

Each bacteriophage targets specific bacteria with high precision, much like a “biological missile.”