Comparison of Mycobacterial Susceptibilities to Six Chemical Disinfectants

摘要

Objective: To compare the mycobacterial susceptibilities among 10 mycobacteria to six disinfectants. [Methods] 10 mycobacterial species and 6 disinfectants were used in this study. We first set up a quantitative suspension mycobactericidal test in the light of Chinese technique standard for disinfection, and then we used the test to evaluate the susceptibilities of each mycobacterium to the tested disinfectants. [Results] The 10 mycobacteria are similarly susceptible to glutaraldehyde, peracetic acid, ethanol and cresol disinfectants, M. fortuitum and M, chelonei subsp. abscessus are more resistant to chlorine disinfectant than the other 8 tested mycobacteria, [Conclusion] M. fortuitum and M. chelonei subsp abscessus were more resistant than or at least as resistant as the other tested mycobacteria to disinfectant.