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Correlation between ATP relative light units (RLU/cm2) and Ct values obtained from surfaces in hospital settings. The scatter plot includes positive swabs for both organic material (ATP >3000) and SARS-CoV-2 RNA (Ct < 40) (n = 49). The chart shows no linear correlation between Ct values and ATP (Spearman’s rank correlation coefficient ρ = −0.16; p-value = 0.27). The y axis is represented in LOG10 scale.
