Journal
VACCINES
Volume 9, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/vaccines9091013
Keywords
coronavirus; SARS-CoV-2; COVID-19 vaccine; Varicella zoster virus; herpes zoster; systematic review; case reports; case series
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After receiving COVID-19 vaccines, some individuals may experience reactivation of varicella zoster virus (VZV) leading to herpes zoster (HZ), with hypertension and autoimmune conditions such as rheumatoid arthritis being common comorbidities. Treatment with oral valacyclovir is commonly used, and increased awareness and early recognition of this condition are crucial for optimal management.
The newly developed COVID-19 vaccines have established a safe profile, yet some individuals experience a wide range of adverse events. Recently, reactivation of varicella zoster virus (VZV) has been observed after administration of different COVID-19 vaccines, although causality remains a matter of debate. The aim of this systematic review was to examine the available literature and provide an overview of reported cases of VZV reactivation following COVID-19 vaccination. We identified 12 eligible articles which included 91 patients with herpes zoster (HZ) following COVID-19 vaccination. Hypertension was the main comorbidity present in 18% of patients (16/91). Additionally, 13% of patients (12/91) had an autoimmune condition with rheumatoid arthritis being the most common (4/12). Moreover, 10% of patients (9/91) were receiving immunosuppressants. The dermatomal distribution of skin lesions varied among patients, with the mammary region being most affected. On average, symptoms developed 5.8 days post-vaccination irrespective of dose and treatment with oral valacyclovir as a monotherapy was employed in most patients (23/91). HZ is possibly a condition clinicians may expect to encounter in patients receiving COVID-19 vaccines. While causality has not yet been established increased awareness and early recognition of the disorder would be crucial for the optimal management of these patients.
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