Evidence map›Paper›PMID 9203350›Full record

ArticleExperimental & applied acarology1997

Detection of Theileria annulata by the PCR in ticks (Acari:Ixodidae) collected from cattle in Mauritania.

C d'Oliveira, M van der Weide, P Jacquiet, F Jongejan

Abstract read
PubMed Publisher
In one paragraph

Article in Experimental & applied acarology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
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  12. Cultivation, cryopreservation and resuscitation ofFrontiers in veterinary science · 2022
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  18. Molecular and pathological studies on natural cases of bovine theileriosis.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2017
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  19. Detection ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2016
    Article
  20. Survey on infection rate, vectors and molecular identification of Theileria annulata in cattle from North West, Iran.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2016
    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 2 countries.

C d'OliveiraDepartment of Parasitology and Tropical Veterinary Medicine, Faculty of Veterinary Medicine, Utrecht University, The Netherlands. C.Oliveira@vetmic.dgk.ruu.nl
M van der Weide
P Jacquiet
F Jongejan
Utrecht University · NLUniversity of Nouakchott Al Aasriya · MR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report on the detection of Theileria annulata in infected Hyalomma ticks by the PCR using primers derived from the gene encoding the 30 kDa major merozoite surface antigen (TamsI-1). No inhibition of the PCR was observed and as little as 0.1 pg of parasite DNA, corresponding to 12 sporozoites, could be detected in non-infected tick DNA samples, spiked with T. annulata genomic DNA. Hyalomma dromedarii ticks, fed on a calf experimentally infected with T. annulata, were used to validate the PCR further. The infection rate in the adult ticks, fed as nymphs during the febrile reaction, was high (62%), dropped to zero for 1 day in tick batches that engorged after treatment with Butalex and increased to 30% 2 days later and 38% of the ticks acquired the infection after feeding as nymphs during a carrier state piroplasm parasitaemia of less than 0.1%. As an internal control, 16S tick rDNA sequences could be amplified from T. annulata-negative tick samples. Finally, 202 adult ticks from Mauritania, collected from zebu cattle carrying low levels of Theileria piroplasms, were tested by the PCR. Thirty-eight out of 52 (73%) and 17 out of 30 (57%) H. dromedarii from the Gorgol and Trarza regions, respectively and two out of 30 (7%) Hyalomma marginatum rufipes from the Gorgol region were positive. Hyalomma marginatum rufipes, Rhipicephalus evertsi evertsi and Rhipicephalus guilhoni from the Trarza region were negative. These findings confirm that H. dromedarii is the main vector of T. annulata in Mauritania and that the PCR is a useful method of determining the infection rates in ticks collected from cattle carrying low levels of T. annulata piroplasms.

Indexed as

Polymerase Chain ReactionAnimalsCattleDNA, ProtozoanFemaleMauritaniaSensitivity and SpecificityTheileria annulataTicksDNA, Protozoan

Identifiers

PMID9203350
OpenAlexW1509372503

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.