biostudies-literatureUnknown2Snitz KThis study was supported by a Weizmann CoronaVirus Emergency Fund grant from Miel de Botton and a Weizmann CoronaVirus Emergency Fund grant from Sonia T. Marschak.<h4>Background</h4>Key to curtailing the COVID-19 pandemic are wide-scale screening strategies. An ideal screen is one that would not rely on transporting, distributing, and collecting physical specimens. Given the olfactory impairment associated with COVID-19, we developed a perceptual measure of olfaction that relies on smelling household odorants and rating them online.<h4>Methods</h4>Each participant was instructed to select 5 household items, and rate their perceived odor pleasantness and intensity using an online visual analogue scale. We used this data to assign an olfactory perceptual fingerprint, a value that reflects the perceived difference between odorants. We tested the performance of this real-time tool in a total of 13,484 participants (462 COVID-19 positive) from 134 countrCommunications medicine34https://www.ebi.ac.uk/biostudies/studies/S-EPMC9053292biostudies-literatureAn olfactory self-test effectively screens for COVID-19.PMC9053292Bonacchi NBensafi MPoo CLundstrom JNMishor EArshamian AShushan SErnst GHummel TSobel NTouhara KMainen ZWeissgross RSmeets MOkamoto MDinnella CFerdenzi CSnitz KKaragach SMarino-Sanchez FIravani BHonigstein DHarel NRavia ARoth YPerl OSpinelli SMedhanie AMonteleone EfalseAn olfactory self-test effectively screens for COVID-19.<h4>Background</h4>Key to curtailing the COVID-19 pandemic are wide-scale screening strategies. An ideal screen is one that would not rely on transporting, distributing, and collecting physical specimens. Given the olfactory impairment associated with COVID-19, we developed a perceptual measure of olfaction that relies on smelling household odorants and rating them online.<h4>Methods</h4>Each participant was instructed to select 5 household items, and rate their perceived odor pleasantness and intensity using an online visual analogue scale. We used this data to assign an olfactory perceptual fingerprint, a value that reflects the perceived difference between odorants. We tested the performance of this real-time tool in a total of 13,484 participants (462 COVID-19 positive) from 134 countr2022-01-01T00:00:00Z20222025-04-26T03:54:28.688Z2024-11-05T22:56:38.097ZS-EPMC90532923560329310.1038/s43856-022-00095-7