ArticleFrontiers in microbiology2025
Efficacy of physical and chemical disinfection against clinically relevant free-living amoebae isolated from drinking water and plumbing biofilms.
Article in Frontiers in microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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6 authors.
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Abstract
Introduction: Free-living amoebae (FLA) are commonly found in drinking water systems and biofilms, posing public health risks both as pathogens and as hosts for opportunistic bacteria such as Legionella spp. and Mycobacterium spp. Current water management practices are often insufficient to control biofilm-associated FLA and their intracellular pathogens. Methods: This study evaluated the efficacy of multiple disinfectants-thermal disinfection (70 °C), hydrogen peroxide, 2-methyl-4-isothiazolin-3-one, benzalkonium chloride (BAC), sodium hypochlorite, and chlorine dioxide-against planktonic trophozoites and cysts of five FLA strains: Acanthamoeba DB1, Allovahlkampfia DS1, Stenamoeba DS1, Vermamoeba vermiformis HB7, and Acanthamoeba polyphaga ATCC Results: Thermal disinfection was the most effective treatment, followed by hydrogen peroxide. Exposure to 70 °C for 45 min achieved >4 log Discussion: The findings demonstrate that thermal disinfection is a highly effective strategy for inactivating multiple FLA species in their trophozoite and cyst forms. Further research is needed to evaluate the feasibility and effectiveness of applying these strategies to control biofilm-associated FLA within plumbing fixtures and drinking water distribution systems.
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