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Fig. 1 | Virology Journal

Fig. 1

From: Spectroscopic methods for COVID-19 detection and early diagnosis

Fig. 1

Subtraction Raman spectra of (a) the average CTRL signal versus the average signal of COV + , (b) the average CTRL signal versus the average COV- spectrum and c the average COV + signal versus the average COV − signal. The ± 0.005 ΔI intervals are indicated in the graphs, confirmed by the error propagation from the spectra standard deviation. d Overlapped average spectra of CTRL, COV + and COV − with the main different regions highlighted. (With permission from [16])

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