Fig. 3From: Assessing the impact of COVID-19 interventions on influenza-like illness in Beijing and Hong Kong: an observational and modeling studyComparison of the observed weekly ILI counts in 2020–2021 with mean and 95% CI of ILI in 2011–2019 in a Beijing and b the Hong Kong SAR, respectively. ILI influenza-like illness, CI confidence interval, Hong Kong SAR Hong Kong Special Administrative RegionBack to article page