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. 2022 Oct 12;27(20):6844. doi: 10.3390/molecules27206844

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Results of cytopathic effect (CPE)-based assays to evaluate the antiviral activities of the essential oils against dengue viruses (DENV-1 and DENV-2). Quantification of crystal violet staining was performed to measure virus-induced CPE. % DENV-CPE = [(OD 570 of infected and treated cells/OD 570 of non-infected non-treated]. EO samples (Table 1): L. origanoides (LoP, LoC, LoTC, LoTf, and LoT); L. alba (LaCi, LaCif, LaCaf2, LaCaf1); T. diffusa (TdS1 and TdS2); O. basilicum (ObS1); P. aduncum (PaS1) and V. curassavica (VcS1). Sodium dodecyl sulfate (SDS) is an antiviral compound. Data are expressed as the mean ± SD from six independent measurements.