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Fig. 1 | BMC Public Health

Fig. 1

From: Correlation between national surveillance and search engine query data on respiratory syncytial virus infections in Japan

Fig. 1

Relative search volume on Google Trends and sentinel surveillance data from 2018 to 2021. Relative search volume on Google Trends and sentinel surveillance data for a 2018, b 2019, c 2020, and d 2021. The surveillance data were available from February 26, 2018 to September 12, 2021. The sentinel surveillance data were expressed as the number of laboratory-confirmed cases per sentinel site

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BMC Public Health

ISSN: 1471-2458

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