Fig. 2From: Epidemiological and virological characteristics of respiratory tract infections in children during COVID-19 outbreakDistribution of positive cases of respiratory viruses from January to April 2018-2020. a: The number of completed tests for respiratory viruses. b: Distribution of positive cases of ADV, FluA, FluB, RSV from January to April in 2018, 2019 and 2020Back to article page