A Shared Strategy for Virulence

Science  31 May 1996:
Vol. 272, Issue 5266, pp. 1261-1263
DOI: 10.1126/science.272.5266.1261


A versatile bacterial weapon that can deliver harmful proteins directly into host cells has recently turned up in a wide range of pathogens. Called the type III secretion system, this biochemical launch pad can sidestep host defenses, and it helps cause diseases ranging from bubonic plague to tree blight.