Evidence map›Paper›PMID 22217169›Full record

ArticleVector borne and zoonotic diseases (Larchmont, N.Y.)2012

Optimization of peptide-based ELISA for serological diagnostics: a retrospective study of human monkeypox infection.

Melissa E Dubois, Erika Hammarlund, Mark K Slifka

Open access · greenAbstract read
In one paragraph

Article in Vector borne and zoonotic diseases (Larchmont, N.Y.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
0.7field-weighted citation impact, top 35% 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

53 citing papers in PubMed, 87 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Waning humoral immunity following monkeypox virus infection and vaccination, Canada, 2020 to 2023.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2026
    Observational
  7. Article
  8. Article
  9. Review
  10. Monkeypox Infection in Kidney Transplant Recipients.Kidney & blood pressure research · 2026
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Review
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

3 authors at 2 institutions in 1 country.

Melissa E DuboisNajít Technologies, Inc., Portland, Oregon, USA.
Erika Hammarlund
Mark K Slifka
Oregon National Primate Research Center · USNajít Technologies (United States) · US

Funding

YR 50 PROJ- ROBERTS PRIMATE ISLETP51RR000163 · NCRR · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI OJEDA, SERGIO R · 1985 to 2011
$140.8M
Rapid Diagnosis of Monkeypox and Smallpox InfectionsR43AI063675 · NIAID · NAJIT TECHNOLOGIES, INC. · PI FITCHEN, JOHN · 2007 to 2008
$1.7M
NCRR NIH HHS RR000163NIAID NIH HHS R43 AI063675
6 · The paper itself

Abstract

Although smallpox has been eradicated, other diseases caused by virulent orthopoxviruses such as monkeypox virus (MPV) remain endemic in remote areas of western and central sub-Saharan Africa, and represent a potential biothreat due to international travel and/or inadvertent exposure. Unfortunately, extensive antigenic cross-reactivity among orthopoxviruses presents a challenge to serological diagnosis. We previously reported a 20mer peptide-based ELISA that identified recent MPV infection with >90% sensitivity and >90% specificity. However, the sensitivity of this approach was not determined with samples obtained at later time points after antibody titers had declined from their peak levels. To improve assay sensitivity for detecting MPV-specific antibodies at later time points, we compared diagnostic 20mer peptides to 30mer peptides. In addition, optimal 30mer peptides were tested in combination or after conjugating selected peptides to a carrier protein (bovine serum albumin) to further improve assay performance. An optimized combination of four unconjugated 30mer peptides provided 100% sensitivity for detecting MPV infection at 2-6 months post-infection, 45% sensitivity for detecting MPV infection at >2 years post-infection, and 99% specificity. However, an optimized combination of two peptide conjugates provided 100% sensitivity for detecting MPV infection at 2-6 months post-infection, 90% sensitivity for detecting MPV infection at >2 years post-infection, and 97% specificity. Peptide-based ELISA tests provide a relatively simple approach for serological detection of MPV infection. Moreover, the systematic approach used here to optimize diagnostic peptide reagents is applicable to developing improved diagnostics to a broad range of other viruses, and may be particularly useful for distinguishing between closely-related viruses within the same genus or family.

Indexed as

AdultAmino Acid SequenceDisease OutbreaksEnzyme-Linked Immunosorbent AssayHumansMonkeypox virusMpox, MonkeypoxRetrospective StudiesSensitivity and SpecificitySerum Albumin, BovineViral ProteinsWisconsinSerum Albumin, BovineViral Proteins

Identifiers

PMID22217169
PMCPMC3353756
OpenAlexW1998879960

What OpenQuestion holds

Textmetadata
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.