Evidence map›Paper›PMID 25490713›Full record

ArticlePloS one2014

Reduction of Campylobacter jejuni in broiler chicken by successive application of group II and group III phages.

Jens A Hammerl, Claudia Jäckel, Thomas Alter, Pawel Janzcyk, Kerstin Stingl, Marie Theres Knüver, Stefan Hertwig

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
7.3field-weighted citation impact, top 3% 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

47 citing papers in PubMed, 96 citations in OpenAlex.

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  19. From Farm to Fork:Viruses · 2022
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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 at 2 institutions in 1 country.

Jens A HammerlBundesinstitut für Risikobewertung, Berlin, Germany.
Claudia JäckelBundesinstitut für Risikobewertung, Berlin, Germany.
Thomas AlterFreie Universität Berlin, Berlin, Germany.
Pawel JanzcykBundesinstitut für Risikobewertung, Berlin, Germany.
Kerstin StinglBundesinstitut für Risikobewertung, Berlin, Germany.
Marie Theres KnüverBundesinstitut für Risikobewertung, Berlin, Germany.
Stefan HertwigBundesinstitut für Risikobewertung, Berlin, Germany.
Federal Institute for Risk Assessment · DEFreie Universität Berlin · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBacteriophage treatment is a promising tool to reduce Campylobacter in chickens. Several studies have been published where group II or group III phages were successfully applied. However, these two groups of phages are different regarding their host ranges and host cell receptors. Therefore, a concerted activity of group II and group III phages might enhance the efficacy of a treatment and decrease the number of resistant bacteria.

resultsIn this study we have compared the lytic properties of some group II and group III phages and analysed the suitability of various phages for a reduction of C. jejuni in broiler chickens. We show that group II and group III phages exhibit different kinetics of infection. Two group III and one group II phage were selected for animal experiments and administered in different combinations to three groups of chickens, each containing ten birds. While group III phage CP14 alone reduced Campylobacter counts by more than 1 log10 unit, the concomitant administration of a second group III phage (CP81) did not yield any reduction, probably due to the development of resistance induced by this phage. One group of chickens received phage CP14 and, 24 hours later, group II phage CP68. In this group of animals, Campylobacter counts were reduced by more than 3 log10 units.

conclusionThe experiments illustrated that Campylobacter phage cocktails have to be carefully composed to achieve the best results.

Indexed as

AnimalsBacteriophagesCampylobacter InfectionsCampylobacter jejuniChickensMalePoultry Diseases

Identifiers

PMID25490713
PMCPMC4260947
OpenAlexW2066289193

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.