The Lishtot TestDrop Pro device cannot reliably indicate microbial water safety

• Timothy Purvis ,

  Contributed equally to this work with: Timothy Purvis, Thao Nguyen

  Roles Conceptualization, Methodology, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: tpurvis@email.unc.edu

  Affiliations The Water Institute, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America, Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0009-0009-2223-4899

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• Thao Nguyen ,

  Contributed equally to this work with: Timothy Purvis, Thao Nguyen

  Roles Data curation, Formal analysis, Writing – original draft

  Affiliation Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0009-0008-2764-3619

  ⨯
• Caitlin McHugh,

  Roles Data curation, Formal analysis

  Affiliation Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0009-0008-4328-8426

  ⨯
• Siya Yeolekar,

  Roles Formal analysis, Software, Visualization

  Affiliation Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  ⨯
• Eddy Ding,

  Roles Formal analysis, Software, Visualization

  Affiliation Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0009-0002-2548-2758

  ⨯
• Juezihan Wang,

  Roles Formal analysis, Software, Visualization

  Affiliation Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0009-0009-4191-3985

  ⨯
• Kevin Zhu,

  Roles Methodology, Resources, Supervision, Validation

  Affiliations The Water Institute, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America, Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  ⨯
• Joe Brown

  Roles Conceptualization, Supervision, Validation, Writing – review & editing

  Affiliations The Water Institute, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America, Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, UNC Chapel Hill, Chapel Hill, North Carolina, United States of America

  https://orcid.org/0000-0002-5200-4148

  ⨯