Changes in the epidemiological patterns of respiratory syncytial virus and human metapneumovirus infection among pediatric patients and their correlation with severe cases: a long-term retrospective study.

The age distribution of RSV and HMPV infections was significantly difference ( p < 0.0001, Table 1 ); hMPV patients’ median age was higher; a decreasing trend of epidemic infection was observed with increasing age among children infected with RSV and hMPV, both in non-ICU and ICU settings.

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