Abstract
BackgroundInfection is the cause of diarrhoea, and rotaviruses and adenoviruses are important pathogens in children.MethodsA retrospective study was conducted on 144,067 children with diarrhoea between 2014 and 2023 in China. We used the colloidal gold method to detect intestinal adenovirus and rotavirus A antigens in faeces. The epidemiological characteristics of these viruses and the impact of meteorological factors on them were analysed before and after coronavirus disease 2019 (COVID-19) pandemic.ResultsDuring this decade, the positive rate of adenovirus infection was 6.41%, while the positive rate of rotavirus A infection was 11.81%, higher than that of adenovirus infection. The positive rate of adenovirus and rotavirus A coinfection was 1.92%. The positive rates of adenovirus, rotavirus A and coinfection showed a fluctuating trend, and suddenly decreased in 2020. There was an apparent decrease of positive rate of rotavirus A, with a decrease of 57.27%, during 2020–2023. Surprisingly, the positive rate of adenovirus infection exceeded that of rotavirus A infection in 2021 and 2023. During the COVID-19 pandemic, the proportion of female patients and children over two years of age infected with adenovirus or rotavirus A increased, while the proportion of cases in winter decreased. In addition, we found that the positive rate of rotavirus A infection was related to average temperature and sunshine, and the positive rate of adenovirus and rotavirus A coinfection was only related to sunshine. However, these correlations disappeared during the COVID-19 pandemic.ConclusionsThis study revealed the recent prevalence of adenovirus and rotavirus A infections in children with diarrhoea in south-central China and provided a theoretical basis for the prevention and control of viral diarrhoea.
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