SARS-CoV-2 has a measurable lifetime outside a living organism
Multiple studies and reviews demonstrate that SARS-CoV-2 has a measurable and significant lifetime outside of a living organism, surviving on surfaces and skin for hours to days depending on environmental conditions.
The claim is specific, empirical, and testable. Multiple retrieved papers explicitly study and measure the persistence, viability, and half-life of SARS-CoV-2 on inanimate surfaces and human skin models outside a host, providing direct and consistent support.
Boris Pastorino, Franck Touret, Magali Gilles, Xavier de Lamballerie, Remi N Charrel. Prolonged viability of SARS-CoV-2 in fomites. 2020. https://doi.org/10.31219/osf.io/7etga
Paper 1 demonstrates that SARS-CoV-2 maintains viability on various dry surfaces for hours to days depending on environmental conditions and protein content.
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Koushlesh Ranjan. Environmental Persistence of SARS-CoV-2 and Disinfection of Work Surfaces in View of Pandemic Outbreak of COVID-19. 2022. https://doi.org/10.5772/intechopen.104520
Paper 4 reviews environmental persistence and confirms that SARS-CoV-2 can survive outside the human body from hours to days depending on factors like temperature and humidity.
Pitol AK, Venkatesan S, Richards S, Hoptroff M, Majumdar A, Hughes GL. SARS-CoV-2 survival on skin and its transfer from contaminated surfaces.. 2025. https://doi.org/10.1371/journal.pone.0325235
Paper 6 evaluates SARS-CoV-2 survival on human skin models and surfaces, establishing measurable half-lives ranging from hours to days.
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