Evidence map›Paper›PMID 32532309›Full record

ArticleParasites & vectors2020

An outbreak of bovine babesiosis in February, 2019, triggered by above average winter temperatures in southern England and co-infection with Babesia divergens and Anaplasma phagocytophilum.

Nicholas Johnson, L Paul Phipps, Harriet McFadzean, Alex M Barlow

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
0.6field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Draft genomes of two contemporary strains ofMicrobiology resource announcements · 2025
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  6. Endemisation and management ofCurrent research in parasitology & vector-borne diseases · 2024
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  7. Pathogens (Basel, Switzerland) · 2023
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  8. Molecular Screening of Blood Donors forTransfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2023
    Article
  9. Article
  10. The roles of COX-2 in protozoan infection.Frontiers in immunology · 2023
    Review
  11. One Health Approach to Tick and Tick-Borne Disease Surveillance in the United Kingdom.International journal of environmental research and public health · 2022
    Review
  12. Article
  13. Ticks, Human Babesiosis and Climate Change.Pathogens (Basel, Switzerland) · 2021
    Review
  14. Detection of Tick-Borne Pathogens in Red Deer (Pathogens (Basel, Switzerland) · 2021
    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.

Nicholas JohnsonVirology Department, Animal and Plant Health Agency (Weybridge), Woodham Lane, Addlestone, KT15 3NB, Surrey, UK. Nick.Johnson@apha.gov.uk.ORCID http://orcid.org/0000-0002-6106-9373
L Paul PhippsVirology Department, Animal and Plant Health Agency (Weybridge), Woodham Lane, Addlestone, KT15 3NB, Surrey, UK.
Harriet McFadzeanVeterinary Investigation Centre Starcross, Animal and Plant Health Agency, Staplake Mount, Starcross, Exeter, EX6 8PE, Devon, UK.
Alex M BarlowWildlife Network for Disease Surveillance, School of Veterinary Science, University of Bristol, Langford, Somerset, BS40 5DU, UK.
Animal and Plant Health Agency · GBUniversity of Bristol · GB

Funding

Department for Environment, Food and Rural Affairs (GB) SV3045
6 · The paper itself

Abstract

backgroundBovine babesiosis, commonly known as redwater fever, is a sporadic tick-borne disease in the United Kingdom. Outbreaks occur during the spring, summer and autumn months when ticks are active. This study reports the findings of an investigation of an outbreak of bovine babesiosis during the winter month of February, 2019.

methodsDNA from blood, organ and tick samples taken from affected cattle were tested for the presence of piroplasm and Anaplasma phagocytophilum DNA using PCRs directed to the 18S rRNA gene and msp2 gene respectively. The species of piroplasm was confirmed by sequencing.

resultsBabesia divergens DNA was detected in the blood of five cattle displaying clinical signs of babesiosis within a herd of twenty. This parasite was also detected in three of ten ticks removed from one of the affected cattle. In addition, A. phagocytophilum was detected in three cattle tested and two of ten of the ticks.

conclusionsAn outbreak of bovine babesiosis during February is unusual as the tick vector, Ixodes ricinus, does not generally become active until temperatures rise later in the year. February of 2019 was unusual as average temperatures during the first week of the month reached over 10 °C, well above historical averages that are typically below 5 °C, and a temperature at which ticks can become active. This unusual weather event is likely to have triggered tick questing, that combined with a co-infection with two tick-borne pathogens caused the severe outbreak of disease.

Indexed as

SeasonsTemperatureAnaplasma phagocytophilumAnimalsBabesiaBabesiosisCattleCattle DiseasesCoinfectionDisease OutbreaksEhrlichiosisFemaleIxodesMaleTick-Borne DiseasesUnited KingdomAnaplasma phagocytophilumBabesia divergensBabesiosis

Identifiers

PMID32532309
PMCPMC7291436
OpenAlexW3035633533

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.