ArticleVeterinary world2021
Correlation between antibody response against porcine epidemic diarrhea virus in sows and their offspring under field conditions.
Article in Veterinary world, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 9 citations in OpenAlex.
- Overcoming Antigenic Drift in PEDV: Broadly Protective Antigen Design and sIgA-Driven Lactogenic Immunity.Veterinary sciences · 2026Review
- Article
- Emergence of a Highly Virulent Porcine Epidemic Diarrhea Virus (PEDV) G2c Subtype in China: Isolation, Genetic and Pathogenic Characterization, and Cross-Neutralizing Antibody Response.Transboundary and emerging diseases · 2026Article
- Dynamic Antibody Responses in Porcine Epidemic Diarrhea Virus-Infected Pigs and Correlation of Prepartum Serum, Oral Swabs, and Rectal Swabs With Postpartum Colostral IgA and IgG in Sows.Transboundary and emerging diseases · 2026Article
- Goat-derived hyperimmune colostrum and milk following vaccination with live-attenuated and inactivated porcine epidemic diarrhea virus: Safety and immunogenicity evaluation.Veterinary world · 2025Article
- MaternalComputational and structural biotechnology journal · 2025Article
- Next-Generation Vaccines for Co-Circulating PEDV and TGEV: Integrating Nucleic Acid Platforms, Mucosal Delivery, and AI-Driven Antigen Design.Transboundary and emerging diseases · 2025Review
- A field comparison study of two vaccine protocols against Erysipelothrix rhusiopathiae in two types of swine breeds in Spain.BMC veterinary research · 2024Article
- Development of an indirect ELISA to detect PEDV specific IgA antibody based on a PEDV epidemic strain.BMC veterinary research · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimThai pig farmers have suffered huge financial losses from porcine epidemic diarrhea (PED) since 2007. PED, caused by the PED virus (PEDV), leads to severe diarrhea, vomiting, and subsequent dehydration in suckling piglets. Lactogenic immunity derived from colostrum and milk is very important because immunoglobulins (Ig) cannot cross the placenta in pregnant sows. The aim of this study was to investigate the immunological correlation of the sample-to-positive (S/P) ratios of IgA and IgG against PEDV between colostrum, sow serum, and their piglet serum. MATERIALS AND
methodsA total of 43 sows were divided into three groups according to the experience of PEDV infection: Negative sow group (n=7) and treatment group (n=36, sows previously infected with PEDV). The treatment group was subdivided into two groups: Sows immunized with live-attenuated PEDV vaccine (n=15) and sows immunized with feedback (n=21) at 3 weeks before farrowing. The 7-day-old piglets (n=425) were obtained from negative sows (n=89), vaccinated sows (n=150), and feedback sows (n=275). Colostrum, sow serum, and their piglet serum were collected and analyzed for S/P ratios of their IgA and IgG levels against PEDV using an enzyme-linked immunosorbent assay.
resultsThe piglets from sows immunized with live-attenuated PEDV vaccine had a higher S/P ratio of IgG against PEDV (p<0.001), whereas the piglets from the feedback group had a higher S/P ratio of IgA against PEDV (p<0.001) compared with piglets from the negative sows. In addition, the S/P ratios of PEDV-specific IgA and IgG between sow serum and colostrum showed a positive correlation (Pearson's coefficient r=0.61 and 0.75, respectively). Both S/P ratios of PEDV-specific IgA and IgG in sow serum and colostrum had a positive correlation to those in piglet serum.
conclusionOverall, this study suggested that pregnant sows immunized with the live-attenuated vaccine against PEDV and feedback may provide maternal immunity against PEDV to their offspring.
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