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  • Title: Enterovirus D68 Causing Acute Respiratory Infection: Clinical Characteristics and Differences With Acute Respiratory Infections Associated With Enterovirus Non-D68.
    Author: Montes M, Oñate E, Muguruza A, Tamayo E, Martí Carrera I, Iturzaeta A, Cilla G.
    Journal: Pediatr Infect Dis J; 2019 Jul; 38(7):687-691. PubMed ID: 30985516.
    Abstract:
    BACKGROUND: Enterovirus (EV) D68 is mainly associated with acute respiratory infection (ARI). Since 2014, when outbreaks in different countries were observed, this emerging virus was considered a potential threat to public health. METHODS: During 2015-2017, the presence of enterovirus RNA was investigated in all respiratory samples of children younger than 15 years of age with ARI, obtained for virologic studies in the Pediatric Emergency Care Units and wards of 2 hospitals in Gipuzkoa (Spain), using a commercial multiplex real-time polymerase chain reaction. When enterovirus was detected, a polymerase chain reaction to amplify a specific viral polyprotein (VP1) gene region of EV-D68 was performed. RESULTS: In 2016, EV-D68 circulation was associated to ARI, with the highest incidence in the spring months. EV-D68 was detected in 44 children, mean age 30.1 ± 31.7 months old, 23 (52.3%) of them females and 17 (38.6%) with underlying respiratory medical conditions. Thirty-two patients (72%) required hospital admission, receiving the discharge diagnosis of recurrent wheezing (37.5%), asthmatic crisis (37.5%) or bronchiolitis (12.5%). Seven children (15.9%) needed the support of the pediatric intensive care unit. When coinfections were excluded, children with EV-D68 infection presented with increased work of breathing, recurrent wheezing or asthmatic crisis, more frequently than those with ARI associated with EV non-D68. Moreover, clinical outcomes (hospitalization, respiratory support) were more severe. All 44 EV-D68 strains detected belonged to lineage B3. CONCLUSIONS: EV-D68 circulated widely in Gipuzkoa during 2016 and was associated with severe ARI. In children with severe ARI of unknown etiology, the presence of EV-D68 should be considered.
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