Do we cause false positives? An experimental series on droplet or airborne SARS-CoV-2 contamination of sampling tubes during swab collection in a test center

摘要

Experimental set-up. Room A: size of 18.96m2, window (at the back of the chair, on which individuals were seated; window area of around 1.7 m2) was permanently tilted throughout experimental series. Room B: size of 19.88m2, window was closed during an experimental series, after each experimental series the window (at the back of the chair, on which individuals were seated; window area of around 1.7 m2) was tilted for approximately 10 min prior to the next experimental series