{"title":"Inactivating effect of 222-nm far ultraviolet-C radiation on nontuberculous mycobacteria","authors":"Chiaki Kajiwara PhD , Rena Kaigome BS , Masahiro Sasaki BE , Toru Koi PhD , Kazuhiro Tateda MD, PhD","doi":"10.1016/j.ajic.2025.02.009","DOIUrl":null,"url":null,"abstract":"<div><div>Nontuberculous mycobacteria (NTM) are ubiquitous and can be inhaled from household water sources, posing a potential risk of pulmonary NTM disease. Exposure to 222-nm far ultraviolet-C shows comparable inactivation efficiency to 254-nm ultraviolet-C, while employing specialized optical filters to significantly enhance safety for human skin and eyes. Exposure of NTM to 222-nm far ultraviolet-C radiation demonstrated an irradiance-dependent inactivating effect, highlighting its potential as a safe and effective for water disinfection.</div></div>","PeriodicalId":7621,"journal":{"name":"American journal of infection control","volume":"53 6","pages":"Pages 729-731"},"PeriodicalIF":2.6000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"American journal of infection control","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0196655325000616","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/18 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"INFECTIOUS DISEASES","Score":null,"Total":0}
引用次数: 0
Abstract
Nontuberculous mycobacteria (NTM) are ubiquitous and can be inhaled from household water sources, posing a potential risk of pulmonary NTM disease. Exposure to 222-nm far ultraviolet-C shows comparable inactivation efficiency to 254-nm ultraviolet-C, while employing specialized optical filters to significantly enhance safety for human skin and eyes. Exposure of NTM to 222-nm far ultraviolet-C radiation demonstrated an irradiance-dependent inactivating effect, highlighting its potential as a safe and effective for water disinfection.
非结核分枝杆菌（NTM）无处不在，可从家庭水源吸入，构成肺部NTM疾病的潜在风险。暴露于222 nm远紫外- c （far UV-C）的失活效率与254 nm紫外- c （UV-C）相当，同时使用专门的光学滤光片可显着提高人体皮肤和眼睛的安全性。NTM暴露于222 nm远紫外- c辐射下显示出辐照依赖性灭活作用，突出了其作为安全有效的水消毒的潜力。
期刊介绍：
AJIC covers key topics and issues in infection control and epidemiology. Infection control professionals, including physicians, nurses, and epidemiologists, rely on AJIC for peer-reviewed articles covering clinical topics as well as original research. As the official publication of the Association for Professionals in Infection Control and Epidemiology (APIC)
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