Evidence map›Paper›PMID 24829214›Full record

ArticleClinical infectious diseases : an official publication of the Infectious Diseases Society of America2014

Detection of Rickettsia rickettsii, Rickettsia parkeri, and Rickettsia akari in skin biopsy specimens using a multiplex real-time polymerase chain reaction assay.

Amy M Denison, Bijal D Amin, William L Nicholson, Christopher D Paddock

Open access · bronzeAbstract readEvaluation Study
In one paragraph

Article in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. Article
  3. Infectious disease reports · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Spotted fever diagnosis using molecular methods.Revista da Sociedade Brasileira de Medicina Tropical · 2024
    Review
  9. Article
  10. Review
  11. Infection and immunity · 2022
    Review
  12. Review
  13. Brown Dog Tick (International journal of environmental research and public health · 2022
    Article
  14. Article
  15. Article
  16. Open forum infectious diseases · 2021
    Article
  17. New Real-Time PCRs to DifferentiateMolecules (Basel, Switzerland) · 2020
    Article
  18. New Jersey-Wide Survey of Spotted Fever GroupThe American journal of tropical medicine and hygiene · 2020
    Article
  19. An apparent, locally acquired case of rickettsialpox (Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2020
    Article
  20. Diagnosis of spotted fever groupEpidemiology and infection · 2019
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Amy M DenisonDivision of High-Consequence Pathogens and Pathology, Infectious Diseases Pathology Branch.
Bijal D AminDepartment of Pathology, Division of Surgical Pathology, Montefiore Medical Center, Bronx, New York.
William L NicholsonDivision of Vector-Borne Diseases, Rickettsial Zoonoses Branch, Centers for Disease Control and Prevention, Atlanta, Georgia.
Christopher D PaddockDivision of High-Consequence Pathogens and Pathology, Infectious Diseases Pathology Branch.
Centers for Disease Control and Prevention · USMontefiore Medical Center · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

backgroundRickettsia rickettsii, Rickettsia parkeri, and Rickettsia akari are the most common causes of spotted fever group rickettsioses indigenous to the United States. Infected patients characteristically present with a maculopapular rash, often accompanied by an inoculation eschar. Skin biopsy specimens are often obtained from these lesions for diagnostic evaluation. However, a species-specific diagnosis is achieved infrequently from pathologic specimens because immunohistochemical stains do not differentiate among the causative agents of spotted fever group rickettsiae, and existing polymerase chain reaction (PCR) assays generally target large gene segments that may be difficult or impossible to obtain from formalin-fixed tissues.

methodsThis work describes the development and evaluation of a multiplex real-time PCR assay for the detection of these 3 Rickettsia species from formalin-fixed, paraffin-embedded (FFPE) skin biopsy specimens.

resultsThe multiplex PCR assay was specific at discriminating each species from FFPE controls of unrelated bacterial, viral, protozoan, and fungal pathogens that cause skin lesions, as well as other closely related spotted fever group Rickettsia species.

conclusionsThis multiplex real-time PCR demonstrates greater sensitivity than nested PCR assays in FFPE tissues and provides an effective method to specifically identify cases of Rocky Mountain spotted fever, rickettsialpox, and R. parkeri rickettsiosis by using skin biopsy specimens.

Indexed as

Real-Time Polymerase Chain ReactionBiopsyCitrate (si)-SynthaseExanthemaHumansRickettsiaRickettsia akariRickettsia InfectionsRickettsia rickettsiiRocky Mountain Spotted FeverSensitivity and SpecificitySkinCitrate (si)-Synthasereal-time PCRRickettsiaskin biopsies

Identifiers

PMID24829214
PMCPMC4568984
OpenAlexW2124174722

What OpenQuestion holds

Textmetadata
LicenceTDM
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.