Primary Varicella Zoster Infection Compared To Varicella Vaccine Reactivation Associated Meningitis In Immunocompetent Children

We diagnosed varicella zoster virus (VZV) meningitis in a healthy adolescent boy who presented without a rash or fever. We aim to compare VZV reactivation meningitis in children after primary VZV infection and VZV vaccination. We reviewed the literature up until June 2020 using Pubmed/MEDLINE and EMBASE databases using 'varicella zoster', 'meningitis' and 'children' as keywords. Only English articles were included. Twenty-five cases were included in this review. Children who had VZV reactivation meningitis after vaccination were younger (7 +/- 3.4 years vs. 11.9 +/- 3.6 years, P = 0.0038), had a shorter interval between first exposure to reactivation (5.6 +/- 2.9 years vs. 8.8 +/- 3.2 years, P = 0.018) and more likely to have a rash (100% vs. 55%, P = 0.04). VZV reactivation meningitis occurs after both primary VZV infection and VZV vaccination. The absence of exanthem, fever or meningism does not rule out VZV meningitis.