[Analysis of common non-bacterial pathogens in hospitalized children with acute respiratory infections: a multicenter study in four regions of Fujian Province in 2023].

Multiplex PCR with fragment analysis demonstrated high diagnostic efficacy. The top 4 non-bacterial pathogens in Fujian Province's ARTI-hospitalized children in 2023 were HRV, MP, RSV and Flu-A. Pathogen distribution exhibited significant regional, age and seasonal variations, emphasizing the need for targeted prevention strategies.