Evidence map›Paper›PMID 31703588›Full record

ArticleBMC veterinary research2019

Seroprevalence and associated risk factors of leptospirosis in slaughter pigs; a neglected public health risk, western Kenya.

Jeremiah N Ngugi, Eric M Fèvre, Georgies F Mgode, Mark Obonyo, Ginethon G Mhamphi, Christina A Otieno, Elizabeth Anne Jessie Cook

Open access · goldAbstract read
In one paragraph

Article in BMC veterinary research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 6% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  16. Pathogens (Basel, Switzerland) · 2023
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  19. Animals : an open access journal from MDPI · 2022
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  20. Serological prevalence ofVeterinarni medicina · 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 4 institutions in 4 countries.

Jeremiah N NgugiField Epidemiology and Laboratory Training Program, Kenyatta National Hospital, P.O. Box 22313, Nairobi, 00100, Kenya. jemiahngugi@gmail.com.ORCID http://orcid.org/0000-0001-8274-9549
Eric M FèvreInternational Livestock Research Institute, Old Naivasha Road, PO Box 30709, Nairobi, 00100, Kenya.
Georgies F MgodePest Management Centre, Sokoine University of Agriculture, Morogoro, Tanzania.
Mark ObonyoField Epidemiology and Laboratory Training Program, Kenyatta National Hospital, P.O. Box 22313, Nairobi, 00100, Kenya.
Ginethon G MhamphiPest Management Centre, Sokoine University of Agriculture, Morogoro, Tanzania.
Christina A OtienoSchool of Public Health, Moi University, Eldoret, Kenya.
Elizabeth Anne Jessie CookInternational Livestock Research Institute, Old Naivasha Road, PO Box 30709, Nairobi, 00100, Kenya. e.cook@cgiar.org.
Kenyatta National Hospital · KESokoine University of Agriculture · TZUniversity of Liverpool · GBMoi University · KE

Funding

Biotechnology and Biological Sciences Research Council BB/L019019/1Biotechnology and Biological Sciences Research Council, the Department for International Development, the Economic & Social Research Council, the Medical Research Council, the Natural Environment Research Council and the Defence Science & Technology Labora BB/L019019/1Global Challenges Research Fund (GCRF) One Health Regional Network for the Horn of Africa (HORN) Project, from UK Research and Innovation (UKRI) and Biotechnology and Biological Sciences Research Council (BBSRC) BB/P027954/1
6 · The paper itself

Abstract

backgroundLeptospirosis is a neglected zoonosis of public health importance transmitted through contact with contaminated soil, water or urine of infected animals. In pigs the disease is characterized by abortion, still births and weak piglets. A cross-sectional study was conducted in May to July 2018 to estimate the sero-prevalence of leptospirosis and factors associated with seropositivity in slaughter pigs. A questionnaire was used to collect information on animal demographics. Serum was tested for anti-leptospiral antibodies using microscopic agglutination test (MAT) with a panel of 8 serovars. Sera were considered positive for sero-reactivity at a MAT titre ≥1:40 against at least one serovar. Chi-square tests were used to measure the strength of association between the MAT test result and exploratory variables.

resultsA total of 252 pig serum samples from seven slaughterhouses were tested for Leptospira antibodies by MAT. Of the 252 pigs sampled, 88.8% (244/252) were indigenous breeds; 55.6% (140/252) were female and 88.7% (220/252) were reared in extensive production systems. Eighty-three (32.9%; 83/252) sera samples tested positive on MAT against at least one serovar. Of the 8 serovars, the highest prevalence was recorded for serovar Lora 21.4% followed by Kenya 5.2%, Sokoine 3.6% and Grippotyphosa at 3.2%. Risk factors for leptospirosis seropositivity in pigs were: originating from farms with other types of livestock (OR 2.3; 95% CI 1.0-4.5) and mature pigs (OR 1.9; 95% CI 1.1-3.3).

conclusionThis study demonstrates that there is a high prevalence of leptospirosis positive pigs at slaughter in a small-holder livestock keeping region of the Lake Victoria basin. The potential for cross species transmission of pathogenic serovars is highlighted as well as the potential for occupational exposure to slaughterhouse personnel. Improvements in husbandry practices (confinement and rodent control) and public health education among slaughterhouse workers and other high-risk groups is recommended.

Indexed as

Seroepidemiologic StudiesAbattoirsAnimal HusbandryAnimalsCross-Sectional StudiesFemaleKenyaLeptospiraLeptospirosisMaleRisk FactorsSwineSwine DiseasesZoonosesLeptospirosisMicroscopic agglutination testOccupational exposureSlaughterhouse workers

Identifiers

PMID31703588
PMCPMC6842184
OpenAlexW2989266331

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.