Evidence map›Paper›PMID 36574585›Full record

ArticleAnnals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology2023

Tick bite as a risk factor for alpha-gal-specific immunoglobulin E antibodies and development of alpha-gal syndrome.

Gilbert J Kersh, Johanna Salzer, Emma S Jones, Alison M Binder, Paige A Armstrong, Shailesh K Choudhary, Grace K Commins, Claire L Amelio, Cecilia Y Kato, Joseph Singleton and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
4.1field-weighted citation impact, top 5% 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.

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

38 citing papers in PubMed, 50 citations in OpenAlex.

  1. Partial tolerance achieved in persistent alpha-gal syndrome: A case report.The journal of allergy and clinical immunology. Global · 2026
    Article
  2. Article
  3. Review
  4. Why are the ticks winning, and what can we do about it?Ticks and tick-borne diseases · 2026
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Living close to the forest is a risk factor for galactose-α-1,3-galactose sensitization.The journal of allergy and clinical immunology. Global · 2025
    Article
  15. Pre-clinical strategies and emerging technologies driving advances in the alpha-gal syndrome.Allergology international : official journal of the Japanese Society of Allergology · 2025
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 2 institutions in 1 country.

Gilbert J KershDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia. Electronic address: gkersh@cdc.gov.
Johanna SalzerDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
Emma S JonesDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
Alison M BinderDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
Paige A ArmstrongDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
Shailesh K ChoudharyDivision of Allergy, Immunology and Rheumatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Grace K ComminsDivision of Allergy, Immunology and Rheumatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Claire L AmelioDivision of Allergy, Immunology and Rheumatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Cecilia Y KatoDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
Joseph SingletonDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.
Brad J BiggerstaffDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
Charles B BeardDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
Lyle R PetersenDivision of Vector-Borne Diseases, Centers for Disease Control and Prevention, Fort Collins, Colorado.
Scott P ComminsDivision of Allergy, Immunology and Rheumatology, Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, North Carolina.
Centers for Disease Control and Prevention · USUniversity of North Carolina at Chapel Hill · US

Funding

Understanding alpha-gal red meat allergyR01AI135049 · NIAID · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Scott Palmer Commins · 2018 to 2026
$5.1M
Intramural CDC HHS CC999999NIAID NIH HHS R01 AI135049
6 · The paper itself

Abstract

backgroundThe disaccharide galactose-α-1,3-galactose (alpha-gal) is expressed in mammals other than humans, apes, and old-world monkeys. In humans, elevated immunoglobulin E (IgE) antibodies specific for alpha-gal can result in allergic hypersensitivity known as alpha-gal syndrome (AGS). Case reports and series suggest that tick bites can induce alpha-gal-specific IgE (sIgE) antibodies.

objectiveTo evaluate tick exposure as a risk factor for AGS and elevated alpha-gal sIgE level.

methodsWe conducted a case-control study comparing patients with AGS from a North Carolina allergy clinic with controls who were patients at a nearby internal medicine clinic. Cases and controls were administered a questionnaire to obtain information about demographics, home environment, outdoor activities, and recollection of tick bite. Serum samples taken at the time of enrollment were tested for total IgE, alpha-gal sIgE, and antibodies to other tick-borne pathogens.

resultsThe patients with AGS were more likely to recall finding a tick on themselves (odds ratio [OR], 11.20; 95% confidence interval [CI], 4.97-25.15), live near wooded forest (OR, 2.27; 95% CI, 0.92-5.55), and spend 17 or more hours per week outdoors in wooded areas (OR, 5.58; 95% CI, 2.56-12.19). The patients with AGS were also more likely to report 4 or more tick bites (OR, 33.05; 95% CI, 9.92-155.12) and reactions at the site of tick bites (OR, 7.93; 95% CI, 3.74-16.80). Furthermore, elevated alpha-gal sIgE level was observed in 33% of the controls and was associated with tick exposure in the controls (OR, 4.25; 95% CI, 2.21-8.18).

conclusionThe results define tick bite as a risk factor for AGS and elevated alpha-gal sIgE level.

Indexed as

Food HypersensitivityTick BitesTicksAllergensAnimalsCase-Control StudiesGalactoseHumansImmunoglobulin ERisk FactorsAllergensGalactoseImmunoglobulin E

Identifiers

PMID36574585
PMCPMC10148555
OpenAlexW4310021331

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.