Abstract
Objective: The pathogens of Tuberculosis (TB) are known as Mycobacterium tuberculosis. Because its cell wall is lipid-rich, the resistance to external environment and disinfectants is quite well. In this study, the mycobacteridal activity of three kinds of disinfectants was assessed by the European Standard UNE-EN-14348 suspension test under both clean and dirty conditions. The disinfectants tested were Asepticare TB+II (Creative Microbiologicals, Ltd, Taiwan), 10% Sodium Hypochlorite (EverGreen chemical industry, Taiwan) and 5% Virkon (Antec Internationa, England). M. tuberculosis H37Rv was used as test organisms at room temperature, under dirty or clean conditions. Results showed that Asepticare TB+II and 10% Sodium Hypochlorite were mycobactericidal in the testing contact time. But 5% Virkon did not demonstrate tuber-culocidal activity as defined by EN14348. The laboratory could evaluate tuberculocidal efficacy of the disinfectants, according to the international standard protocol, UNE-EN-14348.
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