1 Shenzhen Children's Hospital, its Respiratory Department, Shenzhen, China.
2 Shenzhen Children's Hospital, its Respiratory Department, Shenzhen, China; Respiratory Department, Shenzhen, China; Laboratory of Microbiology and Immunology, Beijing Children's Hospital, affiliated to Capital Medical University, Beijing 100045, China.
3 Laboratory of Microbiology and Immunology, Beijing Children's Hospital, affiliated to Capital Medical University, Beijing 100045, China. Electronic address: [email protected].