Tick-borne encephalitis (TBE) vaccination: Applying the most suitable vaccination schedule

Abstract Tick-borne encephalitis (TBE) is caused by an arthropod-borne virus, belonging to the family of Flaviviridae. In case of disease, which can lead to neurological sequelae or even fatal outcomes, only symptomatic treatment is available. TBE can be prevented by vaccination. Various primary imm...

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Bibliographic Details
Published in:Vaccine Vol. 25; no. 8; pp. 1470 - 1475
Main Authors: Schöndorf, I, Beran, J, Cizkova, D, Lesna, V, Banzhoff, A, Zent, O
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 09-02-2007
Elsevier
Elsevier Limited
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Summary:Abstract Tick-borne encephalitis (TBE) is caused by an arthropod-borne virus, belonging to the family of Flaviviridae. In case of disease, which can lead to neurological sequelae or even fatal outcomes, only symptomatic treatment is available. TBE can be prevented by vaccination. Various primary immunization schedules have been developed. To identify the most suitable schedule, the present randomised, controlled study was designed to provide data on the immune response elicited by four different immunization schedules obtained by ELISA and by neutralization test (NT). A total of 398 healthy subjects aged ≥12 years were randomised to vaccination according to either the rapid schedule (Group R, vaccination on days 0, 7 and 21), the conventional schedule (Group C, vaccination on days 0, 28 and 300), the modified conventional schedule (Group M, vaccination on days 0, 21 and 300) or the accelerated conventional schedule (Group A, vaccination on days 0, 14 and 300). Within 3 weeks (i.e. by day 21) antibody levels were higher in Group R and Group A than in Group M and Group C. Group R and Group C both had higher titres on days 42, 180 and 300, than Group A and Group M. The rapid schedule thus combines the advantages of fast protection and of high titres over the observation period of 300 days.
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ISSN:0264-410X
1873-2518
DOI:10.1016/j.vaccine.2006.10.028