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Loss of smell and taste: a new marker of COVID-19? Tracking reduced sense of smell during the coronavirus pandemic using search trends.
Expert Rev Anti Infect Ther. 2020 11; 18(11):1165-1170.ER

Abstract

OBJECTIVES

It has been demonstrated that reduction in smell and/or taste is the most predictive symptom in SARS-CoV-2/Covid-19 infection. We used Google Trends to analyze regional searches relating to loss of smell and taste across Italy, Spain, France, Brazil, and the United States of America and determined the association with reported Covid-19 cases.

METHODS

In order to retrieve the data, we built a Python software program that provides access to Google Trends data via an application program interface. Daily COVID-19 case data for subregions of the five countries selected were retrieved from respective national health authorities. We sought to assess the association between raw search interest data and COVID-19 new daily cases per million for all regions individually.

RESULTS

In total, we yielded 2188 sets of Google Trends data which included 548 time series of 4 anosmia and ageusia search concepts over the study period for 137 regions. These data indicated that differences in search interest for terms relating to anosmia and ageusia, between regions, is associated with geographical trends in new Covid-19 cases.

CONCLUSIONS

We feel that Google search trends relating to loss of smell can be utilized to identify potential Covid-19 outbreaks on a national and regional basis.

Authors+Show Affiliations

Independent , UK.Wigan and Leigh Teaching Hospitals NHS Foundation Trust , Wrightington, UK.Wigan and Leigh Teaching Hospitals NHS Foundation Trust , Wrightington, UK.UCL Cancer Institute, University College London , London, UK.UCL Cancer Institute, University College London , London, UK. Barts Health NHS Trust, Royal London Hospital and Whipps Cross University Hospital , UK.Royal National Throat Nose and Ear Hospital, UCLH Foundation Trust , UK.Wigan and Leigh Teaching Hospitals NHS Foundation Trust , Wrightington, UK.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32673122

Citation

Cherry, George, et al. "Loss of Smell and Taste: a New Marker of COVID-19? Tracking Reduced Sense of Smell During the Coronavirus Pandemic Using Search Trends." Expert Review of Anti-infective Therapy, vol. 18, no. 11, 2020, pp. 1165-1170.
Cherry G, Rocke J, Chu M, et al. Loss of smell and taste: a new marker of COVID-19? Tracking reduced sense of smell during the coronavirus pandemic using search trends. Expert Rev Anti Infect Ther. 2020;18(11):1165-1170.
Cherry, G., Rocke, J., Chu, M., Liu, J., Lechner, M., Lund, V. J., & Kumar, B. N. (2020). Loss of smell and taste: a new marker of COVID-19? Tracking reduced sense of smell during the coronavirus pandemic using search trends. Expert Review of Anti-infective Therapy, 18(11), 1165-1170. https://doi.org/10.1080/14787210.2020.1792289
Cherry G, et al. Loss of Smell and Taste: a New Marker of COVID-19? Tracking Reduced Sense of Smell During the Coronavirus Pandemic Using Search Trends. Expert Rev Anti Infect Ther. 2020;18(11):1165-1170. PubMed PMID: 32673122.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Loss of smell and taste: a new marker of COVID-19? Tracking reduced sense of smell during the coronavirus pandemic using search trends. AU - Cherry,George, AU - Rocke,John, AU - Chu,Michael, AU - Liu,Jacklyn, AU - Lechner,Matt, AU - Lund,Valerie J, AU - Kumar,B Nirmal, Y1 - 2020/07/16/ PY - 2020/7/17/pubmed PY - 2020/11/28/medline PY - 2020/7/17/entrez KW - Covid-19 KW - Smell KW - aguesia KW - anosmia KW - olfaction Disorders KW - search Engine KW - taste SP - 1165 EP - 1170 JF - Expert review of anti-infective therapy JO - Expert Rev Anti Infect Ther VL - 18 IS - 11 N2 - OBJECTIVES: It has been demonstrated that reduction in smell and/or taste is the most predictive symptom in SARS-CoV-2/Covid-19 infection. We used Google Trends to analyze regional searches relating to loss of smell and taste across Italy, Spain, France, Brazil, and the United States of America and determined the association with reported Covid-19 cases. METHODS: In order to retrieve the data, we built a Python software program that provides access to Google Trends data via an application program interface. Daily COVID-19 case data for subregions of the five countries selected were retrieved from respective national health authorities. We sought to assess the association between raw search interest data and COVID-19 new daily cases per million for all regions individually. RESULTS: In total, we yielded 2188 sets of Google Trends data which included 548 time series of 4 anosmia and ageusia search concepts over the study period for 137 regions. These data indicated that differences in search interest for terms relating to anosmia and ageusia, between regions, is associated with geographical trends in new Covid-19 cases. CONCLUSIONS: We feel that Google search trends relating to loss of smell can be utilized to identify potential Covid-19 outbreaks on a national and regional basis. SN - 1744-8336 UR - https://www.unboundmedicine.com/medline/citation/32673122/Loss_of_smell_and_taste:_a_new_marker_of_COVID_19_Tracking_reduced_sense_of_smell_during_the_coronavirus_pandemic_using_search_trends_ L2 - https://www.tandfonline.com/doi/full/10.1080/14787210.2020.1792289 DB - PRIME DP - Unbound Medicine ER -