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Global prevalence of Trichinella in pigs: A systematic review and meta-analysis.


ABSTRACT:

Background

Investigating the global epidemiological patterns of Trichinella in pigs is required for accurate recognition and to establishing proper control programmes and preventive measures, as well as to decrease human exposure.

Objectives

To obtain a better understanding of the global prevalence of Trichinella in domestic pigs and factors that might influence the prevalence, a systematic review and meta-analysis was performed.

Methods

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. Multiple databases were used to identify literature published between January 2000 and December 2021, representing studies from 1985 to 2021, on Trichinella prevalence in domestic pigs. Prevalence was calculated on a global and country level, by country Human Development Index (HDI), climate, pig management system, and diagnostic test.

Results

The global pooled prevalence based on 60 manuscripts representing 32 countries and 65 pig populations was 2.02% (95% confidence interval [CI]: 0.88-3.62) and the estimated pooled prevalence in different continents ranged from 0.00% to 11.8%. Trichinella was highest in low HDI countries (21.6%; 95% CI: 4.3-47.2), tropical wet climates (20.9%; 95% CI: 10.3-34.1), and non-intensive pig farming systems (6.1%; 95% CI: 1.0-15.5).

Conclusions

While there were regional differences in Trichinella prevalence in domestic pigs, these were likely driven by country HDI and pig farming systems versus climatic factors. Increased biosecurity in outdoor pig production systems, focused meat inspections and promoting awareness could potentially decrease risk of infection.

SUBMITTER: Eslahi AV 

PROVIDER: S-EPMC9677376 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature

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Publications

Global prevalence of Trichinella in pigs: A systematic review and meta-analysis.

Eslahi Aida Vafae AV   KarimiPourSaryazdi Amir A   Olfatifar Meysam M   de Carvalho Luis Manuel Madeira LMM   Foroutan Masoud M   Karim Md Robiul MR   Badri Milad M   Ketzis Jennifer K JK  

Veterinary medicine and science 20220922 6


<h4>Background</h4>Investigating the global epidemiological patterns of Trichinella in pigs is required for accurate recognition and to establishing proper control programmes and preventive measures, as well as to decrease human exposure.<h4>Objectives</h4>To obtain a better understanding of the global prevalence of Trichinella in domestic pigs and factors that might influence the prevalence, a systematic review and meta-analysis was performed.<h4>Methods</h4>The Preferred Reporting Items for Sy  ...[more]

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