Evidence map›Paper›PMID 26170195›Full record

ArticleBMC veterinary research2015

Evaluation of farm-level parameters derived from animal movements for use in risk-based surveillance programmes of cattle in Switzerland.

Sara Schärrer, Stefan Widgren, Heinzpeter Schwermer, Ann Lindberg, Beatriz Vidondo, Jakob Zinsstag, Martin Reist

Abstract read
In one paragraph

Article in BMC veterinary research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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

19 citing papers in PubMed.

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  7. Review
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  11. Contact chains of cattle farms in Great Britain.Royal Society open science · 2019
    Article
  12. Article
  13. Complex System Approaches for Animal Health Surveillance.Frontiers in veterinary science · 2019
    Review
  14. Article
  15. Article
  16. Article
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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.

Sara SchärrerVeterinary Public Health Institute (VPHI), Vetsuisse Faculty, University of Bern, Bern, Switzerland. sara.schaerrer@vetsuisse.unibe.ch.
Stefan WidgrenNational Veterinary Institute (SVA), Uppsala, Sweden. stefan.widgren@sva.se.
Heinzpeter SchwermerFederal Food Safety and Veterinary Office (FSVO), Bern, Switzerland. heinzpeter.schwermer@blv.admin.ch.
Ann LindbergNational Veterinary Institute (SVA), Uppsala, Sweden. ann.lindberg@sva.se.
Beatriz VidondoVeterinary Public Health Institute (VPHI), Vetsuisse Faculty, University of Bern, Bern, Switzerland. beatriz.vidondo@gmx.ch.
Jakob ZinsstagSwiss Tropical and Public Health Institute (Swiss TPH), University of Basel, Basel, Switzerland. jakob.zinsstag@unibas.ch.
Martin ReistFederal Food Safety and Veterinary Office (FSVO), Bern, Switzerland. martin.reist@blv.admin.ch.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study focused on the descriptive analysis of cattle movements and farm-level parameters derived from cattle movements, which are considered to be generically suitable for risk-based surveillance systems in Switzerland for diseases where animal movements constitute an important risk pathway.

methodsA framework was developed to select farms for surveillance based on a risk score summarizing 5 parameters. The proposed framework was validated using data from the bovine viral diarrhoea (BVD) surveillance programme in 2013.

resultsA cumulative score was calculated per farm, including the following parameters; the maximum monthly ingoing contact chain (in 2012), the average number of animals per incoming movement, use of mixed alpine pastures and the number of weeks in 2012 a farm had movements registered. The final score for the farm depended on the distribution of the parameters. Different cut offs; 50, 90, 95 and 99%, were explored. The final scores ranged between 0 and 5. Validation of the scores against results from the BVD surveillance programme 2013 gave promising results for setting the cut off for each of the five selected farm level criteria at the 50th percentile. Restricting testing to farms with a score ≥ 2 would have resulted in the same number of detected BVD positive farms as testing all farms, i.e., the outcome of the 2013 surveillance programme could have been reached with a smaller survey.

conclusionsThe seasonality and time dependency of the activity of single farms in the networks requires a careful assessment of the actual time period included to determine farm level criteria. However, selecting farms in the sample for risk-based surveillance can be optimized with the proposed scoring system. The system was validated using data from the BVD eradication program. The proposed method is a promising framework for the selection of farms according to the risk of infection based on animal movements.

Indexed as

AnimalsCattleCattle DiseasesPopulation SurveillanceReproducibility of ResultsRisk FactorsSeasonsSwitzerlandTransportation

Identifiers

PMID26170195
PMCPMC4499910

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Registered trials

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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.