Fig. 1From: Impact of COVID-19 pandemic on the prevalence of respiratory viruses in children with lower respiratory tract infections in ChinaSeasonal activity of respiratory viruses during the COVID-19 pandemic year of 2020 (red line) compared with the previous year of 2019 (black line). Gray block represents the period from public health emergency of international concern (PHEIC) declared by World Health Organization (WHO) to the re-opening of primary and secondary schoolsBack to article page