Evidence map›Paper›PMID 31198174›Full record

ArticleParasite (Paris, France)2019

Absence of Crimean-Congo haemorrhagic fever virus in the tick Hyalomma aegyptium parasitizing the spur-thighed tortoise (Testudo graeca) in Tunisia.

Wasfi Fares, Khalil Dachraoui, Chawki Najjar, Hend Younsi, Stephen Findlay-Wilson, Marie Petretto, Stuart Dowall, Roger Hewson, Elyes Zhioua

Abstract read
In one paragraph

Article in Parasite (Paris, France), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

4 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. 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

9 authors.

Wasfi FaresInstitut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.
Khalil DachraouiInstitut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.
Chawki NajjarInstitut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia - Marwell Wildlife Colden Common, Thompsons Lane, Winchester, SO21 1JH Hampshire, UK.
Hend YounsiInstitut Supérieur des Sciences Biologiques Appliquées de Tunis, Université Tunis El Manar, 9 Avenue Zouhaïer Essafi, 1009 Tunis, Tunisia.
Stephen Findlay-WilsonPublic Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.
Marie PetrettoMarwell Wildlife Colden Common, Thompsons Lane, Winchester, SO21 1JH Hampshire, UK.
Stuart DowallPublic Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.
Roger HewsonPublic Health England, Manor Farm Road, Porton Down, Salisbury, SP4 0JG Wiltshire, UK.
Elyes ZhiouaInstitut Pasteur de Tunis, Laboratory of Vector Ecology, 13 Place Pasteur, 1002 Tunis, Tunisia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Free-ranging spur-thighed tortoises Testudo graeca, captured in different habitat types of Northern Tunisia from March to April 2017, were examined for tick infestation: 134/147 (91%) were infested. The overall infestation intensity and abundance was 8.5 and 7.8, respectively. From these tortoises, 1174 ticks were collected, of which 10% (n = 120) taken from 18 randomly-selected tortoises were identified at the species level; the remaining ticks were examined for the presence of Crimean-Congo haemorrhagic fever virus (CCHFv) by real time RT-PCR. Only adult Hyalomma aegyptium were found, suggesting a high degree of host specificity to tortoises. No CCHFv was detected in ticks. Considering the absence of CCHFv in Hyalomma aegyptium infesting its main host, the spur-thighed tortoise, this tick species is unlikely to play a major role in the epidemiology of CCHF. Therefore, more studies are needed to investigate the circulation of this arbovirus between livestock and other tick species from North Africa.

Indexed as

AnimalsFemaleHemorrhagic Fever, CrimeanHemorrhagic Fever Virus, Crimean-CongoHost SpecificityMaleReal-Time Polymerase Chain ReactionTick InfestationsTicksTunisiaTurtles

Identifiers

PMID31198174
PMCPMC6568017

What OpenQuestion holds

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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.