Table 1.
Number of searches for long-COVID using the Yahoo! JAPAN search engine, by gender and age in the years 2020, 2021, and 2022.
Fig 1.
Monthly online long-COVID search volume and number of new COVID-19 cases reported in Japan from January 2020 to December 2022.
Online interest in long-COVID increased in mid-2021, early 2022, and late 2022, corresponding to peaks in the number of new cases of COVID-19 reported during waves of the COVID-19 epidemic in Japan. Source: Yahoo Japan Data Solution DS. INSIGHT.
Table 2.
Long-COVID online search volume and top 10 symptoms (2020–2022).
Table 3.
Online search volume for the top 10 symptoms included in Table 2 as distinct searches, not paired with long-COVID (2020–2022).