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Fig. 3 | BMC Medical Research Methodology

Fig. 3

From: Need of care in interpreting Google Trends-based COVID-19 infodemiological study results: potential risk of false-positivity

Fig. 3

COVID-19 weekly positivity trends and the GT search volume trends for ‘loss of smell’ in each region. The relative GT search volume trends for the ‘loss of smell’ word (or its corresponding Japanese word) of each country (in dotted lines), which has clear temporal relationship with the COVID-19 positivity trends (in solid lines). X-axis in months since October 2019 to September 2020

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BMC Medical Research Methodology

ISSN: 1471-2288

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