Ea. Bryce et al., WHEN THE BIOLOGICAL INDICATOR IS POSITIVE - INVESTIGATING AUTOCLAVE FAILURES, Infection control and hospital epidemiology, 18(9), 1997, pp. 654-656
A series of positive biological indicators in steam autoclaves from di
fferent hospital departments within the same building were traced to b
locked steam traps on building condensate lines. The steps taken durin
g the investigation and a protocol for management of positive biologic
al indicators are described.