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. 2022 May 26;17(5):e0268692. doi: 10.1371/journal.pone.0268692

Fig 4. The limit of detection.

Fig 4

Two saliva pools from different negative individuals (n = 10) were spiked with 10–40 copies of virus /μL. Three LAMP reactions were performed using 20 different replicate samples. The Tt values derived from 60 reactions are plotted. No amplification is assigned a Tt value of 36 for plotting purposes.