Title Molecular epidemiology and clinical characterization of human rhinoviruses circulating in Shanghai, 2012-2020.
Author Jiang, Haixia; Yang, Tianyun; Yang, Chunyi; Lu, Yanping; Yi, Zhigang; Zhang, Qin; Wang, Wei
Journal Arch Virol Publication Year/Month 2022-Apr
PMID 35303167 PMCID PMC8931777
Affiliation + expend 1.Shanghai Public Health Clinical Center, Fudan University, Shanghai, China.

Human rhinoviruses (HRVs) cause acute upper and lower respiratory tract infections and aggravation of asthma and chronic obstructive pulmonary disease. The 5\' untranslated region (5\' UTR) and the VP4/VP2 region are widely used for genotyping of HRVs. Members of the species Rhinovirus A and Rhinovirus C have been reported to be more frequently associated with severe disease than members of the species Rhinovirus B. We report the clinical and molecular epidemiological characteristics of HRVs circulating from 2012 to 2020 in Shanghai. A total of 5832 nasopharyngeal swabs from patients with acute respiratory infections were collected. A real-time reverse transcription polymerase chain reaction assay was used for virus detection. The 5\' untranslated region and VP4/VP2 region were amplified and sequenced for genotyping and phylogenetic analysis. The overall rate of rhinovirus detection was 2.74% (160/5832), with members of species A, B, and C accounting for 68.13% (109/160), 20.00% (32/160), and 11.88% (19/160) of the total, respectively. A peak of HRV infection was observed in autumn (5.34%, 58/1087). Patients in the 3- to 14-year-old age group were the most susceptible to HRV infection (chi(2) = 23.88, P = 0.017). Influenza virus and Streptococcus pneumoniae were detected more frequently than other pathogens in cases of coinfection. Recombination events were identified in 10 strains, which were successfully genotyped by phylogenetic analysis based on the 5\' UTR-VP4/VP2 region but not the 5\' UTR region alone. We observed a high degree of variability in the relative distribution of HRV genotypes and the prevalence of HRV infection in Shanghai and found evidence of recombination events in the portion of the genome containing the 5\' UTR and the VP4/VP2 region between HRV-C strains and HRV-A-like strains. This study is important for surveillance of the spread of HRVs and the emergence of new variants.

StrainID RV Species Serotype Length(nt) Country Year Strain Name
UNS07170 Unclassified None 901 China 2020 2020.1
UNS07171 Unclassified None 901 China 2020 2020.9
UNS07172 Unclassified None 897 China 2012 2012.1
UNS07173 Unclassified None 897 China 2012 2012.1
UNS07174 Unclassified None 900 China 2012 2019.1
UNS07175 Unclassified None 907 China 2020 2020.6
UNS07176 Unclassified None 907 China 2020 2020.7
UNS07177 Unclassified None 907 China 2020 2020.8
UNS07178 Unclassified None 907 China 2013 2013.9
UNS07179 Unclassified None 907 China 2017 2017.6
UNS07180 Unclassified None 906 China 2012 2012.1
UNS07181 Unclassified None 906 China 2013 2013.12
UNS07182 Unclassified None 905 China 2014 2014.11
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