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Enterovirus D68 Subgenotype B3 Circulation in Children with Acute Respiratory Illness in the State of Alagoas, Brazil
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Enterovirus D68 Subgenotype B3 Circulation in Children with Acute Respiratory Illness in the State of Alagoas, Brazil
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Journal Article
Enterovirus D68 Subgenotype B3 Circulation in Children with Acute Respiratory Illness in the State of Alagoas, Brazil
2025
Overview
Enterovirus D68 (EV-D68) is a leading cause of acute respiratory disease outbreaks, especially among children. EV-D68 infections can rapidly progress to severe clinical complications and potentially fatal outcomes. In Brazil, no diagnostic or genomic surveillance of this virus is currently performed. Between July and September 2023, cases of acute EV-D68 infection were identified among pediatric patients in several municipalities within the State of Alagoas, Northeast Brazil. Infections were confirmed by RT-qPCR using nasopharyngeal samples, and the complete EV-D68 genomes were sequenced and analyzed through phylogenetic inference. EV-D68 RNA was identified in four children aged 1–9 years from four geographically distinct municipalities in Alagoas. All infections were associated with lower respiratory tract symptoms, including dyspnea and wheezing; however, no fatalities were reported. Complete genomic sequencing revealed that the samples belonged to genotype B, subgenotype B3. This is the first study to report complete genomic data on EV-D68 infections from Brazil and South America. Enhanced genomic surveillance and focused EV-D68 diagnosis are critical to better understanding and managing the regional and national dissemination of this virus.
Publisher
MDPI AG,MDPI
Subject
/ Brazil
/ Child
/ Children
/ Dyspnea
/ Enterovirus D, Human - classification
/ Enterovirus D, Human - genetics
/ Enterovirus D, Human - isolation & purification
/ Enterovirus Infections - epidemiology
/ Enterovirus Infections - virology
/ EV-D68
/ Female
/ Genomes
/ Genomics
/ Genotype
/ Humans
/ Infant
/ Male
/ Mutation
/ Respiratory Tract Infections - epidemiology
/ Respiratory Tract Infections - virology
/ Severe acute respiratory syndrome coronavirus 2
/ Wheezing
