Health Facility Based Efficacy Assessment of In-use Disinfectants

Disinfection in hospital practice is mainly achieved either by surface disinfection or immersing the contaminated objects in the disinfectant solution. This study was undertaken for assessing the efficacy of commonly used disinfectants in a tertiary care teaching hospital against Multi Drug Resistant Pseudomonas aeruginosa isolate, and to evaluate the different methods of testing of disinfectants like Rideal-Walker Test, Chick-Martin Test, Kelsey-Sykes Test, Surface Disinfection Test and In-Use Test. In this study, samples of disinfectants and those in use, namely, Lysol, Sodium Hypochlorite, Glutaraldehyde and Bacillocid were collected from different sites in the hospital. The standard tests to check efficacy included Rideal-Walker Phenol Coefficient Test, Chick –Martin Test, Kelsey -Sykes Test, Surface Disinfection Test, In-Use Test. The tests were carried out by standard procedures. It was evident in the present study that Bacillocid had good efficacy in its working concentration