Evidence map›Paper›PMID 24995863›Full record

ArticleTransfusion2014

Determination of Babesia microti seroprevalence in blood donor populations using an investigational enzyme immunoassay.

Andrew E Levin, Phillip C Williamson, James L Erwin, Sherri Cyrus, Evan M Bloch, Beth H Shaz, Debra Kessler, Sam R Telford, Peter J Krause, Gary P Wormser and 5 more

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in Transfusion, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03056378 (Phase I Clinical Trial of Pooled Red Blood Cells for Transfusion), which is not on this map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% of its field
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.

NCT03056378 phase1withdrawnnot on this mapstarted 2019, after this paper: background citation

Phase I Clinical Trial of Pooled Red Blood Cells for Transfusion

TypeinterventionalSponsorNew York Blood CenterRan2019 to 2021Enrolled0ConditionsTransfusion Reaction, AnemiaArmsStandard RBCs
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Global meta-analysis onPathogens and global health · 2022
    Pooled it
  2. Guidance on the Management of Asymptomatic Blood Donors Who Test Positive for Babesia.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2026
    Article
  3. Babesiosis and Its Significance in Transfusion Medicine from a European Point of View.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2026
    Review
  4. Article
  5. Transfusion-transmittedJournal of clinical microbiology · 2023
    Review
  6. Article
  7. Article
  8. Preventing Transfusion-Transmitted Babesiosis.Pathogens (Basel, Switzerland) · 2021
    Review
  9. Article
  10. Persistence ofPathogens (Basel, Switzerland) · 2019
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

15 authors at 7 institutions in 1 country.

Andrew E LevinImmunetics, Inc., Boston, Massachusetts.
Phillip C Williamson
James L Erwin
Sherri Cyrus
Evan M Bloch
Beth H Shaz
Debra Kessler
Sam R Telford
Peter J Krause
Gary P Wormser
Xiaoyan Ni
Haihong Wang
Neil X Krueger
Sally Caglioti
Michael P Busch
Immunetics (United States) · USCreative Thermal Solutions · USBlood Systems Research Institute · USNew York Blood Center · USNew York Medical College · USTufts University · USYale New Haven Health System · US

Funding

NHLBI NIH HHS HHSN268201000047CNHLBI NIH HHS HHSN268201200067C
6 · The paper itself

Abstract

backgroundTransfusion-transmitted babesiosis caused by Babesia microti has emerged as a significant risk to the US blood supply. This study estimated the prevalence of B. microti antibodies in blood donors using an investigational enzyme immunoassay (EIA). STUDY DESIGN AND

methodsA peptide-based EIA that detects both immunoglobulin (Ig)G and IgM antibodies to B. microti was developed and validated. Donor samples randomly selected from areas defined as high-risk endemic, lower-risk endemic, and nonendemic for B. microti were deidentified and tested using the investigational EIA. Samples that were EIA repeat reactive were further tested by B. microti immunofluorescent assay (IFA), polymerase chain reaction (PCR) on red blood cell lysates, and peripheral blood smear examination. A random subset of 1272 samples from high-risk endemic areas was tested by IFA, PCR, and peripheral blood smear in parallel with EIA.

resultsAmong 15,000 donations tested with the investigational B. microti EIA, EIA repeat-reactive rates were 1.08% (54/5000) in a high-risk endemic area, 0.74% (37/5000) in a lower-risk area, and 0.40% (20/5000) in a nonendemic area. After application of a revised cutoff, these values were reduced to 0.92%, (46/5000), 0.54% (27/5000), and 0.16% (8/5000). Overall concordance between EIA and IFA among donor samples was 99.34%. One seropositive sample was positive by PCR.

conclusionThe seroprevalence of B. microti in blood donors in a high-risk area measured by an investigational EIA was approximately 1%. The EIA shows promise as an efficient high-throughput blood donor screening assay for B. microti.

Indexed as

Antibodies, ProtozoanBabesia microtiBabesiosisBlood DonorsHumansImmunoenzyme TechniquesSeroepidemiologic StudiesTransfusion ReactionAntibodies, Protozoan

Identifiers

PMID24995863
PMCPMC4163072
OpenAlexW1517732582

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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 OpenQuestion graph.