Article History
Received: 8 June 2021
Accepted: 22 September 2021
First Online: 19 October 2021
Declarations
:
: The authors declare that they have no conflict of interest.
: This study was approved by the ethics committee of Huzhou Center for Disease Control and Prevention. Informed consent for the nasopharyngeal swabs was obtained from the patients or their guardians. This study was part of a routine laboratory-based investigation. No human experimentation was conducted. The only human materials used were nasopharyngeal swabs that had been sent to our laboratory for routine virological diagnosis.
: Not applicable.