Figure legends
Figure 1. The prevalence of RV in hospitalized pediatric patients with ARTIs from January 2021 to December 2023.
Figure 2. Age-based analysis of RV infections from 2021 to 2023
Figure3. Phylogenetic Analysis of RV Strains. The phylogenetic tree was constructed based on Hainan RV sequences from 2021 to 2023, along with reference sequences with genotype information from around the world. The neighbor-joining method was employed to generate the tree, and branch support was determined through 1000 bootstrap iterations using MEGA software. The resulting tree nodes were annotated with bootstrap values. Sequences from Hainan RV strains, identified by accession numbers, are color-coded by year to indicate prevalent strains: yellow for 2021, blue for 2022, and red for 2023, illustrating the temporal evolution of RV strains.