Study population
This study was conducted between March 3, 2018 and March 3, 2020, as no
positive sample of any virus was detected from March 4 to June 3, 2020.
Children aged 0–10 years old with ARTI who came to see pediatricians in
our hospital had their nasopharyngeal swabs collected and sent for
analysis (n=11813). Because the specimens were collected at the time of
admission or outpatient service, we could fully exclude the origin of
ARTI in hospital. Upon receiving the nasopharyngeal swabs, the
laboratory technicians would process and test the samples immediately.