Analysis of viral spectrum changes of respiratory tract infections in Kunming from 2018 to 2021
10.3760/cma.j.cn112866-20230612-00061
- VernacularTitle:2018—2021年昆明地区呼吸道感染病毒谱变化分析
- Author:
Yaoyao CHEN
1
;
Lifen ZHANG
;
Xiaoqing FU
;
Jienan ZHOU
Author Information
1. 云南省疾病预防控制中心，昆明 650022
- Keywords:
COVID-19;
Respiratory tract infections;
Virus;
Surveillance
- From:
Chinese Journal of Experimental and Clinical Virology
2023;37(5):505-510
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To understand the viral spectrum changes of respiratory tract infections in Kunming city from 2018 to 2021.Methods:Throat swab samples were collected from influenza-like cases in 2 general hospitals and 1 children’s hospital in Kunming city from 2018 to 2021. Real-time RT-PCR was used to detect 14 common respiratory viruses (including influenza virus, human adenovirus, human respiratory syncytial virus, human rhinovirus, human bocavirus, human metapneumovirus, human parainfluenza virus, human coronavirus), and the detection data before and during the epidemic were analyzed.Results:From 2018 to 2021, a total of 12 302 specimens were collected and tested, and 2 600 positive specimens were detected, with a total positive rate of 21.13%. The positive detection rate before the epidemic was 25.91%, which was significantly higher than 16.18% during the epidemic ( χ2=174.35, P<0.05), and the detection rates of Flu and HAdV decreased by 75.36% and 45.31% respectively, while the detection rates of HRV and 229E increased by 72.22% and 350% respectively. During the epidemic, the total virus detection rate of male and female cases and all age groups under 50 years old were lower than before the epidemic. Conclusions:The epidemic of SARS-CoV-2 and the implementation of corresponding prevention and control measures have an impact on the epidemic trend of common respiratory viruses in Kunming, and the monitoring of multiple respiratory viruses is of great significance.
