Abstract

Enteroviral meningitis is a common disease in children; however, serotype data are still lacking, especially for late childhood. This study analyzed the number of annual cases, distribution by age group, and characteristics of each serotype among children with enteroviral meningitis. After the initial screening of 1,009 children (<18 years) with viral meningitis between 2008 and 2021, the data of enteroviral meningitis were retrospectively reviewed. The number of annual cases and serotypes were investigated. The distribution of serotypes across different ages was reviewed. Clinical characteristics of the major serotypes (detected in at least 15 patients) were further examined. Among the 700 patients with enteroviral meningitis, serotypes were tested in 517 patients (73.9%), which could be typed in 370 patients (71.6%). EV-A71 was the most common serotype detected in 2010, 2012, and 2019. After 2020, enterovirus was rarely detected. The group B coxsackieviruses (CVBs) were commonly detected in neonates (CVB1, 33.3%) and infants (CVB5, 17.4%). The echoviruses were commonly detected beyond infancy; E30 was the most frequently detected in late childhood (14.4%) and adolescents (15.4%). EV-A71 was the most frequently detected in early childhood (17.2%). Between the 11 major serotypes, vomiting, headache, and irritability were more commonly associated with echoviruses (P <0.01). In EV-A71, neurologic symptoms and skin lesions were more common (P <0.01). The CVBs were commonly detected in neonates and infants, whereas the echoviruses were commonly detected beyond infancy and caused vomiting, headache, and irritability. EV-A71 was the most frequently detected in early childhood, frequently causing neurologic and dermatologic problems.

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