Screening procedure

PW Philipp Warnke
FP Friederike Pola Johanna Pohl
GK Guenther Kundt
AP Andreas Podbielski
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The screening was performed by the same investigator at all instances. Each screening location was swabbed by circulating while simultaneously rotating the swab for 360° and exerting gentle pressure. Each of the subjects was swabbed with each swab-type and at each anatomical site, resulting in nine swabs in total (i.e. three swab-types at three different locations). The order of the utilized swab-types was blinded/randomly chosen to avoid bias due to cyclic order. The swabbed location had to be accurately targeted and therefore one sided blinding was no option.

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