Fig. 3

The results of the final multivariable linear regression after backwards variable selection showing the degradation of swIAV RNA, depicted as Ct-value Increase by qRT-PCR in spiked oral fluids with the addition of the different stabilizer media or without (A), with either H1avN2 or H1pdmN2 (B), collected at different time points (start (0), 72 h, 168 h (7 d), and 336 h (14 d) after spiking) (C) and stored at either room temperature, (22 °C,) or refrigerated (4 °C) (D)