ArticleBMC veterinary research2014
Seroprevalence of Lawsonia intracellularis antibodies in intensive pig farms in China.
Article in BMC veterinary research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 18 citations in OpenAlex.
- Prevalence ofFrontiers in microbiology · 2026Article
- Vaccination Reduces Fecal Shedding and Improves Carcass Quality in Pigs with SubclinicalVaccines · 2025Article
- Vaccination versus antimicrobials to prevent Porcine Proliferative Enteropathy: associated costs and effects on piglets' growth, health, and serological performance.Frontiers in veterinary science · 2025Article
- Fecal PCR survey and genome analysis ofFrontiers in veterinary science · 2024Article
- Prevalence and associated risk factors forFrontiers in veterinary science · 2023Article
- Development and validation of a flow cytometry antibody test forFrontiers in immunology · 2023Article
- Microbiota of vaccinated and non-vaccinated clinically inconspicuous and conspicuous piglets under naturalFrontiers in veterinary science · 2022Article
- Preparation and Characterization of a New Monoclonal Antibody Specific AgainstFrontiers in veterinary science · 2021Article
- Rapid and visual detection of Lawsonia intracellularis with an improved recombinase polymerase amplification assay combined with a lateral flow dipstick.BMC veterinary research · 2019Article
- Prevalence ofPorcine health management · 2019Article
- Serological profile, seroprevalence and risk factors related to Lawsonia intracellularis infection in swine herds from Minas Gerais State, Brazil.BMC veterinary research · 2015Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPorcine proliferative enteropathy caused by Lawsonia intracellularis (L. intracellularis) is a major concern to the pig industry worldwide. Although 8.3 billion pigs are produced each year in China, few reports on the prevalence of L.intracellularis infection are available. The aim of the current study was to estimate the seroprevalence of L. intracellularis antibodies in intensive pig farms in China.
resultsA total of 1060 serum samples were collected from 14 commercial pig farms located throughout China. Animals from all age groups were sampled including pre-weaning piglets, weaners, fattening pigs, adult sows and boars. Antibodies against L. intracellularis were detected using a specific blocking ELISA. Of the 1060 serum samples, 602 were identified as positive using the ELISA test. The apparent seroprevalence of L. intracellularis seropositivity was 57% (95% CI 50 to 64%). The true prevalence (that is, prevalence corrected for the imperfect sensitivity and specificity of the testing method) was 77% (95% CI 70 to 83%).
conclusionsThe highest true prevalence was observed in sows and boars, suggesting that within a herd these stock classes are a reservoir for infection. The prevalence of L. intracellularis seropositivity in local breed pigs was significantly less than that in imported breeds. A higher seroprevalence was found in pigs in herds in Central and Northern China, which may correspond to the greater use of the intensive production systems in these areas. We conclude that L. intracellularis is widely prevalent in commercial pigs in China.
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