2.1 Demographic characteristics and RSV detection
From March 1, 2015, to February 29, 2019, a total of 29,923 cases were included in this study, of whom 8,586 (29%) were with AURTI, 16,121 (54%) were with non-severe community-acquired pneumonia (NSCAP), 4,139 (14%) were with severe community-acquired pneumonia (SCAP), and 1074 (4%) were with bronchitis (3 had missing final diagnostic information). Male (16, 668; 56%) and female (13,162; 44%) patients were included in this study (93 missing gender information). The youngest was 1 month old, and the oldest was 104 years old with a median age of 38 years old (120 patients missing age information).
Of all included patients, RSV was detected in 623 (2%), including 92 (15% of 623 RSV infections) patients with AURTI, 429 (69%) with NSCAP, and 92 (15%) with SCAP (diagnostic information was not found for 10). Among these patients with RSV, 352 (57%) were male, 267 (43%) were female (4 missing gender information), the minimum age was 1 month old, and the maximum was 101 years old with a median age of 4 years old (age information was not found for three).
Of the 623 RSV-positive cases, 391 (62.8%) were identified as RSV-A, 126 (20.2%) as RSV-B, and 106 (17.0%) were not identified successfully.