Evidence map›Paper›PMID 31571143›Full record

ArticleActa parasitologica2020

Comparison of Light Microscopy and Polymerase Chain Reaction for the Detection of Haemoparasites in Cattle in Nigeria.

Anise N Happi, Olawale Osifade, Paul E Oluniyi, Bamidele N Ogunro

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Acta parasitologica, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 20% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Molecular prevalence of tick-borne haemoprotozoan diseases in cattle of North Eastern state of Tripura, India.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2023
    Article
  9. Article
  10. First Molecular Detection and Characterization of HemotropicAnimals : an open access journal from MDPI · 2020
    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

4 authors at 2 institutions in 1 country.

Anise N HappiDepartment of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria. anisehappi@yahoo.com.ORCID http://orcid.org/0000-0001-8959-5175
Olawale OsifadeDepartment of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria.
Paul E OluniyiDepartment of Biological Sciences, Redeemer's University, Ede, Nigeria.
Bamidele N OgunroVeterinary Teaching Hospital, University of Ibadan, Ibadan, Nigeria.
University of Ibadan · NGRedeemer's University · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeHaemoparasitic diseases are among the important factors that threaten cattle health and productivity especially in the sub-Saharan region. In Nigeria, their detection using sensitive molecular techniques is scanty. This study was designed to investigate and to reevaluate the repertoire of haemoparasites of cattle in Ibadan, Nigeria with a comparative evaluation of light microscopy (LM) and polymerase chain reaction (PCR) methods.

methodsBlood samples from 100 cattle slaughtered at Ibadan abattoirs were examined using LM and PCR techniques for haemoparasite detection. The PCR reactions using three primer sets targeting the 16S rRNA genes for Hemoplasma spp. and Anaplasma/Ehrlichia spp. and 18S rRNA genes of Babesia/Theleiria spp. were done. A few randomly selected amplicons from each set were sequenced and analysed.

resultsA total infection rate of 34% by LM including Hemoplasma spp. (17%), Anaplasma spp. (16%), microfilaria (5%) and Trypanosoma spp. (12%) was recorded. While, 86% positivity was recorded with PCR amplification as follows: Hemoplasma spp. (64%), Babesia/Theleiria spp. (46%) and Anaplasma/Ehrlichia spp. (5%). Comparison of LM and PCR findings showed that no LM Anaplasma spp.-positive samples and 7 out of the 17 LM hemoplasma-positive cattle were confirmed by PCR. In addition, LM led to misdiagnosis of 46 Babesia/Theleiria spp.-positive samples. Amplicon sequencing and phylogenetic analysis of Babesia/Theileria spp.-positive samples revealed Theileria velifera and Theileria annulata. In the Anaplasma/Ehrlichia spp.-positive samples, only Anaplasma marginale was characterized. Mycoplasma wenyonii, "Candidatus Mycoplasma haemobos" and Pseudomonas fluorescens like were characterized among the hemoplasma-infected cattle.

conclusionsThe first report of "Candidatus Mycoplasma haemobos" and Pseudomonas fluorescens like in Nigerian cattle is herewith documented. The alarming LM misdiagnosis of haemoparasites during this study confirms its limitations as it fails to identify many parasites and emphasizes the need for inclusion of molecular techniques to improve their detection. The study also shows for the first time the high prevalence of haemotropic mycoplasma in Nigerian cattle via molecular diagnostic methods, thus indicating a strong need for the investigation of their zoonotic implications.

Indexed as

AnimalsCattleCattle DiseasesDNA PrimersFemaleMaleMicroscopyNigeriaParasitesParasitic Diseases, AnimalPhylogenyPolymerase Chain ReactionRNA, Ribosomal, 16SDNA PrimersRNA, Ribosomal, 16SCattleHaemoparasitesMycoplasma haemobosNigeriaPseudomonas fluorescens like

Identifiers

PMID31571143
OpenAlexW2977422306

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.