Seroprevalence of group B Coxsackieviruses: Retrospective study in an Italian population

Journal of Medical Virology
Ilaria SciandraOmbretta Turriziani

Abstract

Group B Coxsackieviruses (CVB) include six serotypes (B1-6) responsible for a wide range of clinical diseases. Since no recent seroepidemiologic data are available in Italy, the study aim was to investigate CVB seroprevalence in a wide Italian population. The study retrospectively included 2459 subjects referring to a large academic hospital in Rome (Italy) in the period 2004-2016. Seroprevalence rates and neutralizing antibodies (nAb) titers were evaluated in relation to years of observation and subjects' characteristics. Positivity for at least one serotype was detected in 69.1% of individuals. Overall, the prevalent serotype was B4, followed by B3 (33.3%), B5 (26.2%), B1 (12.7%), B2 (11.0%), and B6 (1.7%). For B2, a significant decrease in seroprevalence over years was observed. Positivity to at least one virus was 25.2% in children aged 0 to 2 years, but significantly increased in preschool (3-5 years) (50.3%) and school (6-10 years) children (70.4%). Higher nAb responses for B3 and B4 were observed in children aged 3 to 5 years. A high overall CVB prevalence was found. Type-specific variations in prevalence over time probably reflect the fluctuations in circulation typical of Enteroviruses. Children are at greater risk for...Continue Reading

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