Evidence map›Paper›PMID 17145943›Full record

Trial reportInfection and immunity2007

Immunization of cattle with live tachyzoites of Neospora caninum confers protection against fetal death.

D J L Williams, C S Guy, R F Smith, J Ellis, C Björkman, M P Reichel, A J Trees

Open access · greenAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.3field-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

36 citing papers in PubMed, 123 citations in OpenAlex.

  1. Article
  2. Microorganisms · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. AVaccines · 2021
    Article
  11. Article
  12. Article
  13. Research intoPathogens (Basel, Switzerland) · 2020
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Canine neosporosis: perspectives on pathogenesis and management.Veterinary medicine (Auckland, N.Z.) · 2016
    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

7 authors at 5 institutions in 3 countries.

D J L WilliamsVeterinary Parasitology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool L3 5QA, United Kingdom. williadj@liv.ac.uk
C S Guy
R F Smith
J Ellis
C Björkman
M P Reichel
A J Trees
University of Liverpool · GBAustralasia Paediatric Endocrine Group · AULiverpool School of Tropical Medicine · GBSwedish University of Agricultural Sciences · SEUniversity of Technology Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neospora caninum is an obligate intracellular protozoan parasite that causes abortion in cattle. It is normally found as a latent infection controlled by a T-helper-cell type 1 response involving CD4(+) cytotoxic T cells and gamma interferon. Cattle may be infected by two different routes: transplacentally as a result of activation of the latent infection in the mother causing congenital infection or abortion and by ingestion of oocysts, which, if it occurs during gestation, can also result in abortion. Here, for the first time, we establish proof that live vaccination protects against fetal death, whereas immunization using whole-tachyzoite lysate in different adjuvants fails to protect against fetal death. Strong antibody responses were induced in all the vaccinated groups, and the quality and magnitude of these responses were similar in the live- and the lysate-vaccinated groups. In contrast, only the group immunized with live tachyzoites had strong cellular and gamma interferon responses prior to challenge, and these responses correlated with protection against fetopathy. These results suggest that a cellular immune response may be important in the mechanisms involved in protection against N. caninum-associated abortions.

Indexed as

AnimalsAntibodies, ProtozoanCattleCell ExtractsCoccidiosisFemaleFetal DeathNeosporaPregnancyProtozoan VaccinesVaccines, AttenuatedAntibodies, ProtozoanCell ExtractsProtozoan VaccinesVaccines, Attenuated

Identifiers

PMID17145943
PMCPMC1828590
OpenAlexW2134349829

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.