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. 2022 Mar 17;207:114192. doi: 10.1016/j.bios.2022.114192

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Fig. 5 — Flow profile analysis of clinical saline gargle samples. (A–B) Flow distance profiles of representative positive and negative clinical samples, respectively. (C–D) Flow velocity profiles of the same, numerically differentiated from A and B. (E) The time to reach constant velocity (as demonstrated in A-B) for all clear negative and positive samples (n = 18). (F) Time to constant velocity for positive clear samples (n = 9) against the cycle threshold (Ct) values obtained with RT-qPCR. The lower the Ct value, the higher the virus titer in the sample.