in taxon output of inflammatory response Vertebrata <vertebrates> pus Wikipedia:Pus ENVO:02000038 ncithesaurus:Pus purulent exudate Pus is a bodily fluid consisting of a whitish-yellow or yellow substance produced during inflammatory responses of the body that can be found in regions of pyogenic bacterial infections. Pus is produced from the dead and living cells which travel into the intercellular spaces around the affected cells. galen:Pus organism substance