Population-based study of influenza and invasive meningococcal disease among Greek children during the COVID-19 pandemic.

meningitidis asymptomatic carriage shows an increasing trend through childhood from 4.5% in infants to a peak of 23.7% in 19-year-olds and gradually decreases in older adults. 13 Even though IMD incidence in developed countries has remained low during the last few years, mainly due to the implementation of universal infant vaccination, its epidemiology is often unpredictable and characterised by changes in incidence and prevalent serogroups. 14 In Greece, the NIP includes MenC immunisation at 12 months of age since 2006 and MenACWY quadrivalent conjugated immunisation in 11 years old adolescents since 2012.

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