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Sero-prevalence and risk factors associated with African swine fever on pig farms in southwest Nigeria

Overview of attention for article published in BMC Veterinary Research, June 2015
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  • Above-average Attention Score compared to outputs of the same age (52nd percentile)
  • Good Attention Score compared to outputs of the same age and source (71st percentile)

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Title
Sero-prevalence and risk factors associated with African swine fever on pig farms in southwest Nigeria
Published in
BMC Veterinary Research, June 2015
DOI 10.1186/s12917-015-0444-3
Pubmed ID
Authors

Emmanuel Jolaoluwa Awosanya, Babasola Olugasa, Gabriel Ogundipe, Yrjo Tapio Grohn

Abstract

African swine fever (ASF) is one of the major setbacks to development of the pig industry in Nigeria. It is enzootic in southwest Nigeria. We determined the sero-prevalence and factors associated with ASF among-herd seropositivity in 144 pig farms in six States from southwest Nigeria during the dry and rainy seasons using indirect Enzyme Linked Immunosorbent Assay (ELISA) for ASF IgG antibodies. An interviewer-administered questionnaire was used to collect information on demography, environmental and management factors. We performed descriptive statistics, and univariate and multivariable analyses to determine the among-herd sero-prevalence of ASF and its associated factors. The overall herd sero-prevalence of ASF was 28 % (95 % Confidence interval (95 % CI) 21 - 36); it was significantly higher (P <0.05) in the dry season (54 %; 95 % CI 37 - 70) than the rainy season (18 %; 95 % CI 11 - 27). In the univariate analysis, having a quarantine/ isolation unit within 100 m radius of a regular pig pen (OR = 3.3; 95 % CI 1.3 - 8.9), external source of replacement stock (OR = 3.2; 95 % CI 1.3 - 8.3) and dry season (OR = 5.3; 95 % CI 2.2 - 12.7) were risk factors for ASF among-herd seropositivity. In the multivariable logistic regression, there was interaction between season and herd size. Our final model included season, source of replacement stock, herd size and interaction between herd size and season. Herds with an external source of replacement always had higher ASF sero-prevalence compared with herds with an internal source. The herd size effect varied between seasons. The ASF herd level sero-prevalence in southwest Nigeria was higher in pig herds with an external source of replacement stock and in the dry season. The effect of season of the year the samples were taken on ASF seropositivity was modified by herd size. We encourage strict compliance with biosecurity measures, especially using an internal source of replacement stock and measures that minimize movement on pig farms in southwest Nigeria, in order to enhance ASF free farms.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 76 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 76 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 12 16%
Student > Doctoral Student 10 13%
Other 8 11%
Student > Master 8 11%
Student > Postgraduate 5 7%
Other 16 21%
Unknown 17 22%
Readers by discipline Count As %
Veterinary Science and Veterinary Medicine 24 32%
Agricultural and Biological Sciences 9 12%
Biochemistry, Genetics and Molecular Biology 5 7%
Medicine and Dentistry 3 4%
Social Sciences 2 3%
Other 7 9%
Unknown 26 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 June 2015.
All research outputs
#13,364,370
of 22,811,321 outputs
Outputs from BMC Veterinary Research
#911
of 3,050 outputs
Outputs of similar age
#124,103
of 264,930 outputs
Outputs of similar age from BMC Veterinary Research
#16
of 59 outputs
Altmetric has tracked 22,811,321 research outputs across all sources so far. This one is in the 41st percentile – i.e., 41% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,050 research outputs from this source. They receive a mean Attention Score of 3.8. This one has gotten more attention than average, scoring higher than 69% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 264,930 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 52% of its contemporaries.
We're also able to compare this research output to 59 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 71% of its contemporaries.