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Encephalitis l: Introduction

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Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...

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Purification of Biotinylated Cell Surface Proteins from Rhipicephalus microplus Epithelial Gut Cells

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Published on: July 23, 2017

Are tick-borne encephalitis vaccines interchangeable?

Michael Bröker¹, Ines Schöndorf

¹Novartis Vaccines, Clinical Research and Medical Affairs, Post Box 1630, 35006 Marburg, Germany. michael_broeker@Chiron.com

Expert Review of Vaccines

|September 23, 2006

Summary

This review assesses the interchangeability of two tick-borne encephalitis (TBE) vaccines available in Europe. It explores strategies for completing TBE vaccination schedules using different vaccine brands.

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Area of Science:

* Virology and Immunology
* Vaccine Development and Efficacy

Background:

* Two primary tick-borne encephalitis (TBE) vaccines are widely available across European nations.
* Concerns regarding the interchangeability of these TBE vaccines are common among healthcare providers and patients.
* No comprehensive analysis of TBE vaccine exchangeability has been published previously.

Purpose of the Study:

* To critically evaluate the clinical evidence supporting the interchangeability of the two available TBE vaccines.
* To provide guidance on managing and completing TBE primary immunization schedules when vaccine brands are mixed.
* To address the frequent question of whether TBE vaccine brands can be switched during a primary immunization course.

Main Methods:

* Systematic review of published clinical studies and trials involving the two TBE vaccines.
* Analysis of data pertaining to immunogenicity and safety profiles when switching vaccine manufacturers.
* Examination of recommendations and guidelines concerning TBE vaccine schedule completion.

Main Results:

* Evidence regarding the direct exchangeability of the two TBE vaccines is limited.
* Immunological data suggests potential for successful boosting or completion of primary schedules using different vaccine brands.
* Safety profiles of both vaccines are generally favorable, even in mixed schedules.

Conclusions:

* While direct interchangeability requires further robust data, mixed TBE vaccination schedules appear feasible for completing immunization.
* Healthcare providers should consider individual patient factors and available evidence when managing TBE vaccination.
* Further research is warranted to definitively establish the efficacy and safety of switching TBE vaccine brands.