Molecular epidemiology, coinfection, and diversity of enteroviruses detected in respiratory samples collected from patients with influenza-like illness in Hangzhou, China, in 2023.

Publication date: Jul 08, 2025

The coronavirus pandemic in China ended in 2022, and stringent control measures were lifted in 2023. This study investigated the pathogen and endemic characteristics of enteroviruses (EVs) in patients with influenza-like illness (ILI) in Hangzhou, China, in 2023, providing a foundation for the prevention and control of EV infections. Throughout 2023, 3,480 throat swab samples were collected from hospitals across Hangzhou. Among these, 130 were positive for EVs, with a positivity rate of 3. 74%. Successful sequencing and typing were achieved for 91 cases (70. 00%, 91/130), which included four enterovirus A (EV-A), three enterovirus B (EV-B), and one enterovirus D (EV-D) species. EV-A was predominant in 94. 51% (86/91) of the samples, followed by EV-B (4. 40%, 4/91) and EV-D (1. 10%, 1/91). Notably, coxsackievirus A6 was the dominant genotype detected, accounting for 60. 44% (55/91) of the samples. Coinfection with 12 distinct non-EV respiratory pathogens was also observed in a significant proportion (75. 82%, 69/91) of the samples. Summer and autumn represented peak periods for EV circulation, and children 

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Concepts Keywords
Accounting Adolescent
Coxsackievirus Adult
Hangzhou Aged
Hospitals Child
Child, Preschool
China
Coinfection
Coinfection
Endemic characteristics
Enterovirus
Enterovirus
Enterovirus Infections
Female
Genetic Variation
Genotype
Genotype
Humans
Infant
Infant, Newborn
Influenza-like illness
Influenza, Human
Male
Middle Aged
Molecular Epidemiology
Phylogeny
Respiratory Tract Infections
Young Adult

Semantics

Type Source Name
disease MESH coinfection
disease MESH influenza
disease IDO pathogen
disease MESH infections
pathway REACTOME Reproduction
disease MESH Enterovirus Infections
disease MESH Respiratory Tract Infections

Original Article

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