Evidence map›Paper›PMID 39177883›Full record

ArticleInfection2025

Development and validation of a novel enzyme-linked immunosorbent assay for the differentiation of tick-borne encephalitis infections caused by different virus subtypes.

Zane Freimane, Gerhard Dobler, Lidia Chitimia-Dobler, Guntis Karelis, Philipp Girl, Sanita Kuzmane, Oksana Savicka, Wilhelm Erber, Dace Zavadska

Abstract readValidation Study
In one paragraph

Article in Infection, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Zane FreimaneDepartment of Paediatrics, Children's Clinical University Hospital, Rīga Stradinš University, Riga, Latvia. Zane.Freimane@rsu.lv.
Gerhard DoblerBundeswehr Institute of Microbiology, Munich, Germany.
Lidia Chitimia-DoblerBundeswehr Institute of Microbiology, Munich, Germany.
Guntis KarelisDepartment of Neurology and Neurosurgery, Department of Infectology, Riga East University Hospital, Rīga Stradinš University, Riga, Latvia.
Philipp GirlBundeswehr Institute of Microbiology, Munich, Germany.
Sanita KuzmaneNational Microbiology Reference Laboratory, Riga East University Hospital, Rīga Stradinš University, Riga, Latvia.
Oksana SavickaNational Microbiology Reference Laboratory, Riga East University Hospital, Rīga Stradinš University, Riga, Latvia.
Wilhelm ErberIndependent consultant vaccines, Vienna, Austria.
Dace ZavadskaDepartment of Paediatrics, Children's Clinical University Hospital, Rīga Stradinš University, Riga, Latvia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTick-borne encephalitis (TBE) is an infection caused by the tick-borne encephalitis virus (TBEV) that can lead to symptoms of central nervous system inflammation. There are five subtypes of TBEV, three of which - European, Siberian and Far Eastern - occur in Europe. As it is thought that different subtype infections exhibit varying clinical courses and outcomes, serological differentiation of the virus subtypes is clearly important. However, to date, this has proved difficult to achieve.

methodsAn ELISA format was developed based on TBE virus NS1 antigen against the European, Siberian and Far Eastern subtype. The three NS1 antigens were biotechnologically produced in a human cell line and used for ELISA coating. Sera from German (European subtype) and Russian (Siberian and/or Far Eastern subtypes) TBE patients with positive TBEV IgG were used to test the reactivity against these three NS1 antigens.

resultsTesting of 23 German and 32 Russian TBEV IgG-positive sera showed that the ELISA was able to differentiate between TBEV European subtype and TBEV Siberian and Far Eastern subtype infections.

conclusionsIn geographical areas where two or more TBEV subtype infections can occur, the NS1-IgG ELISA developed here constitutes an important diagnostic tool to differentiate between European subtype infections and Siberian/Far Eastern subtype infections and to use the new assay for epidemiological studies to clarify the importance of particular subtype infections in an area. Consequently, it may help to better describe and anticipate the clinical courses and outcomes of particular TBEV subtype infections.

Indexed as

Encephalitis, Tick-BorneEncephalitis Viruses, Tick-BorneAntibodies, ViralAntigens, ViralEnzyme-Linked Immunosorbent AssayGermanyHumansImmunoglobulin GViral Nonstructural ProteinsAntibodies, ViralAntigens, ViralImmunoglobulin GViral Nonstructural ProteinsELISAFlavivirusNS1 antibodiesNS1 antigenTBEV subtypes

Identifiers

PMID39177883
PMCPMC11825600

What Socratic holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.