phylacogen

English

Etymology

From Ancient Greek Φύλαξ (Phúlax, “guard”) + γενναν (gennan, “to produce”).

Noun

phylacogen (countable and uncountable, plural phylacogens)

1. Any of several bacterial derivatives developed by Dr. A. F. Schafer in 1910 to combat bacterial infections.
   • 1912, College of Physicians of Pittsburg, Pennsylvania, Symposium on the use of phylacogens (modified bacterial derivatives) (page 62)

     As patient was steadily growing worse and becoming more emaciated and suffering from the increased pain, rheumatism phylacogen treatment was suspended, and a tuberculin test was made, which was markedly positive.

   • 1915, The Therapeutic Gazette, page 515:

     Administer phylacogen to combat the effects of the toxemia from the infecting organisms.

   • 1920, Hospital Corps Quarterly, numbers 12-15, page 89:

     When phylacogens were first introduced the best means of regulating the dosage to the individual patient had not been determined, and constitutional reactions were more frequent and more pronounced than they are at the present time.