pyogen

== English == === Etymology === From Streptococcus pyogenes. === Noun === pyogen (plural pyogens) (bacteriology) A microorganism responsible for a wide range of human illnesses, spanning from mild throat and skin infections to life-threatening invasive diseases. === Further reading === Streptococcus pyogenes on Wikipedia.Wikipedia === References === “pyogen.” Merriam-Webster.com Medical Dictionary, Merriam-Webster.