Emergence and circulation of enterovirus B species in infants in southern China : A multicenter retrospective analysis

BACKGROUND: Enteroviruses (EV) are common and can cause severe diseases, particularly in young children. However, the information of EV infection in infants in China is limited due to the vast population size and extensive geographical area of the country. Here, we conducted a retrospective multicenter analysis of available EV data to assess the current epidemiological situation in the infant population in southern China.

METHODS: The study enrolled infants with suspected EV infection from 34 hospitals across 12 cities in southern China between 2019 to 2022, and the confirmation of EV was done using RT-PCR and VP1 gene sequencing.

RESULTS: Out of 1221 infants enrolled, 330 (27.03%) were confirmed as EV-infected. Of these, 260 (78.79%) were newborns aged 0-28 days. The EV belonged to three species: EV-B (80.61%), EV-A (11.82%), and human rhinovirus (7.58%). Newborns were more susceptible to EV-B than older infants (p < 0.001). Within EV-B, we identified 15 types, with coxsackievirus (CV) B3 (20.91%), echovirus (E) 11 (19.70%), and E18 (16.97%) being the most common. The predominant EV types changed across different years. EV infection in infants followed a seasonal pattern, with a higher incidence from May to August. Furthermore, perinatal mother-to-child EV transmission in 12 mother-newborn pairs were observed.

CONCLUSION: Our study is the first to demonstrate the emergence and widespread circulation of EV-B species, mainly CVB3, E11, and E18, in southern China, primarily affecting young infants. This research provides valuable insights for future epidemic assessment, prediction, as well as the elimination of mother-to-child transmission.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Virulence - 15(2024), 1 vom: 31. Apr., Seite 2329569

Sprache:

Englisch

Beteiligte Personen:

Yang, Xiaohan [VerfasserIn]
Wu, Yudan [VerfasserIn]
Zhao, Hongyu [VerfasserIn]
Liu, Pan [VerfasserIn]
Liang, Lihua [VerfasserIn]
Yin, Aihua [VerfasserIn]

Links:

Volltext

Themen:

Enterovirus
Epidemiology
Infants
Journal Article
Multicenter Study
Perinatal mother-to-child transmission
Southern China

Anmerkungen:

Date Completed 01.04.2024

Date Revised 03.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1080/21505594.2024.2329569

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370450507