Enteroviruses (EVs) are an important cause of illness, especially in neonates and young infants. Clinical and laboratory findings at different ages, brain imaging, and outcomes have been inadequately investigated.

Background Enteroviruses (EVs) are an important cause of illness, especially in neonates and young infants. Clinical and laboratory findings at different ages, brain imaging, and outcomes have been inadequately investigated. Methods We retrospectively investigated EV infections occurring at an Italian tertiary care center during 2006-2017. Cases were confirmed with a positive polymerase chain reaction on blood or cerebrospinal fluid. Clinical and laboratory findings according to age at presentation were analyzed. Results Among 61 cases of EV infection, 56 had meningitis, 4 had encephalitis, and 1 had unspecific febrile illness. Forty-seven cases (77.0%) presented at less than 1 year of age, and most were less than 90 days of age (n = 44). Presentation with fever (p < 0.01), higher median temperature (p < 0.01), and irritability (p < 0.01) were significantly more common among infants aged less than 90 days, who also had significantly higher peak temperatures during the course of the disease (p < 0.01). In contrast, gastrointestinal symptoms were more common in infants and children aged over 90 days (p = 0.02). Only 4 of 61 infections (6.5%) were severe and all affected younger infants (p < 0.01). Conclusions We detail epidemiological, clinical, and laboratory findings in a cohort of 61 children. Infants aged less than 90 days have more severe disease; they are more likely to present with fever, higher median temperature, and irritability and less likely to develop gastrointestinal symptoms.

Clinical characterization of neonatal and pediatric enteroviral infections: an Italian single center study / Berardi, Alberto; Sandoni, Marcello; Toffoli, Carlotta; Boncompagni, Alessandra; Gennari, William; Bergamini, Maria Barbara; Lucaccioni, Laura; Iughetti, Lorenzo. - In: THE ITALIAN JOURNAL OF PEDIATRICS. - ISSN 1824-7288. - 45:1(2019), pp. 1-8.

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