ArticleScientific reports2026
Maternal immunity and post-vaccination sero-monitoring in small ruminants for peste des petits ruminants eradication in North Shewa, Ethiopia.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Serological Investigation of Major Respiratory Viruses in Sheep in North Shewa, Ethiopia: Parainfluenza Virus, Bluetongue Virus, Maedi-Visna Virus and Peste des Petits Ruminants Virus.Veterinary medicine and science · 2026Article
- Epidemiological and Operational Constraints on the Feasibility of Peste des Petits Ruminants Eradication Target by 2030: Necessity for a New Pragmatic Road Map.Transboundary and emerging diseases · 2026Review
- Seroprevalence and Associated Risk Factors of Peste des Petits Ruminants in Small Ruminants in North Shewa, Ethiopia: Implications for Eradication Efforts.Veterinary medicine international · 2026Article
- Serosurveillance and Postvaccination Seromonitoring of Peste Des Petits Ruminants in Small Ruminants in Central Gondar Zone, Northwest Ethiopia.Transboundary and emerging diseases · 2026Article
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Authors and funding
15 authors.
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Abstract
Ethiopia aims to eradicate peste des petits ruminants (PPR) by 2027 through a risk-based vaccination strategy (RBVS); however, outbreaks continue to occur. This cross-sectional study (January–May 2024) evaluated RBVS performance by assessing flock- and maternal-level antibody immunity, providing field-based evidence to inform PPR control and eradication efforts. A total of 594 serum samples were collected using simple random sampling to assess flock (n = 508) and maternal (n = 86) antibody immunity. All samples were tested for PPRV antibodies using a competitive enzyme-linked immunosorbent assay (c-ELISA). Overall individual animal-level antibody immunity was 65.35% (332/508), while at the flock level only 22.27% of flocks (6/22) had ≥ 80% of animals with detectable antibodies. Multivariable logistic regression showed significant differences in immune status by age group (p < 0.05). Adult (284/428, 66.36%) and older (26/33, 78.79%) small ruminants were approximately three and four times more likely to be seropositive than young animals (52.21%), respectively. Significant district-level variation was also observed: animals in Basona-werena (116/146, 79.45%) were three times more likely to be seropositive than those in Menz-mama (88/155, 56.77%). Overall maternal antibody immunity in kids and lambs was 52.3%, with 61.29% (95% CI: 42.19–78.15) in kids and 47.27% (95% CI: 33.65–61.20) in lambs. This study demonstrates insufficient maternal and flock-level antibody immunity against PPRV in vaccinated small ruminants, with levels below the recommended 80% threshold. To improve coverage, vaccination efforts should prioritize young animals, districts with low antibody levels, and areas with poor past performance. Strengthening surveillance, refining vaccination strategies, enhancing sero-monitoring, and ensuring efficient vaccine distribution are essential for effective PPR control and eventual eradication.
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