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1. Epidemiological and clinical characteristics of respiratory viruses in 4403 pediatric patients from multiple hospitals in Guangdong, China

Author

Yajie Zhang, Lin Qiao, Jinxiu Yao, Nan Yu, Xiaoping Mu, Shengqi Huang, Bo Hu, Weixuan Li, Feng Qiu, Fangyin Zeng, Cong Chen, Yuqiu Zhou, Bashan Zhang, Tian Cai, Weijia Wang, Xianjin Wu, Yiwen Zhou, Guochang Wang, Bo Situ, Shuling Lan, Na Li, Xiu Li, Zihua Li, Xin Li, Congrong Wang, Chao Yang, Pingfeng Feng, Hongxia Wang, Sijing Zhu, Yufeng Xiong, Min Luo, Wenjuan Shen, Xiumei Hu, and Lei Zheng

Subjects
Acute respiratory infections, Prevalence, Seasonal, Respiratory viral infections, Multi-center, China, Pediatrics, RJ1-570
Abstract

Abstract Background Acute respiratory infections (ARI) cause considerable morbidity and mortality worldwide, especially in children. Unfortunately, there are limited multi-center data on common viral respiratory infections in south China. Methods A total of 4403 nasal swabs were collected from children in 10 cities in Guangdong, China in 2019. Seven respiratory viruses, influenza A virus (IFA), influenza B virus (IFB), respiratory syncytial virus (RSV), adenoviruses (ADV) and parainfluenza virus types 1–3 (PIV1, PIV2 and PIV3), were detected by direct immunofluorescence antibody assay. The personal information and clinical characteristics were recorded and analyzed. Results The results showed that at least one virus was detected in 1099 (24.96 %) samples. The detection rates of RSV, IFA, ADV, PIV3, PIV1 and PIV2 were 7.13 % (314/4403), 5.31 % (234/4403), 4.02 % (177/4403), 3.04 % (134/4403), 1.70 % (75/4403) and 1.16 % (51/4403), respectively. The detection rate of RSV was highest in 0–6-month-old children at 18.18 % (106/583), while the detection rate of IFA was highest in 12–18-year-old children at 20.48 % (17/83). The total detection rates in winter and spring were 35.67 % (219/614) and 34.56 % (403/1166), higher than those in summer, 17.41 % (284/1631), and autumn, 19.46 % (193/992). Conclusions RSV and IFA were the main respiratory viruses in children. With increasing age the detection rate of RSV decreased in children, but the trends for the detection rates of IFA and IFB were the opposite. This study provided the viral etiology and epidemiology of pediatric patients with ARI in Guangdong, China.

Published
2021
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2. Epidemiological and clinical characteristics of respiratory viruses in 4403 pediatric patients from multiple hospitals in Guangdong, China

Author

Sijing Zhu, Wenjuan Shen, Xiaoping Mu, Xin Li, Shengqi Huang, Hongxia Wang, Cong Chen, Congrong Wang, Bashan Zhang, Xiu Li, Bo Situ, Tian Cai, Yajie Zhang, Zihua Li, Fangyin Zeng, Feng Qiu, Lei Zheng, Weixuan Li, Nan Yu, Lin Qiao, Xianjin Wu, Jinxiu Yao, Chao Yang, Pingfeng Feng, Yuqiu Zhou, Yiwen Zhou, Guochang Wang, Yufeng Xiong, Weijia Wang, Na Li, Min Luo, Bo Hu, Xiumei Hu, and Shuling Lan

Subjects
0301 basic medicine, Acute respiratory infections, Respiratory viral infections, China, medicine.medical_specialty, Adolescent, viruses, 030106 microbiology, Respiratory Syncytial Virus Infections, medicine.disease_cause, Pediatrics, RJ1-570, Virus, 03 medical and health sciences, Epidemiology, Prevalence, Influenza A virus, Humans, Medicine, Multi-center, Respiratory system, Child, Respiratory Tract Infections, Direct fluorescent antibody, Viral etiology, Seasonal, Respiratory tract infections, biology, business.industry, Research, Infant, Newborn, Infant, virus diseases, 030112 virology, Virology, Hospitals, Respiratory Syncytial Virus, Human, Viruses, Pediatrics, Perinatology and Child Health, biology.protein, Antibody, business
Abstract

Background Acute respiratory infections (ARI) cause considerable morbidity and mortality worldwide, especially in children. Unfortunately, there are limited multi-center data on common viral respiratory infections in south China. Methods A total of 4403 nasal swabs were collected from children in 10 cities in Guangdong, China in 2019. Seven respiratory viruses, influenza A virus (IFA), influenza B virus (IFB), respiratory syncytial virus (RSV), adenoviruses (ADV) and parainfluenza virus types 1–3 (PIV1, PIV2 and PIV3), were detected by direct immunofluorescence antibody assay. The personal information and clinical characteristics were recorded and analyzed. Results The results showed that at least one virus was detected in 1099 (24.96 %) samples. The detection rates of RSV, IFA, ADV, PIV3, PIV1 and PIV2 were 7.13 % (314/4403), 5.31 % (234/4403), 4.02 % (177/4403), 3.04 % (134/4403), 1.70 % (75/4403) and 1.16 % (51/4403), respectively. The detection rate of RSV was highest in 0–6-month-old children at 18.18 % (106/583), while the detection rate of IFA was highest in 12–18-year-old children at 20.48 % (17/83). The total detection rates in winter and spring were 35.67 % (219/614) and 34.56 % (403/1166), higher than those in summer, 17.41 % (284/1631), and autumn, 19.46 % (193/992). Conclusions RSV and IFA were the main respiratory viruses in children. With increasing age the detection rate of RSV decreased in children, but the trends for the detection rates of IFA and IFB were the opposite. This study provided the viral etiology and epidemiology of pediatric patients with ARI in Guangdong, China.

Published
2021

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