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August 14, 2026BMC Veterinary ResearchOpen Access

Dynamics of parrot bornavirus infection in traded psittacine birds across El Niño–Southern Oscillation phases in Thailand, 2022–2025

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Authors

PSPoonyapat SedwisaiASAeknarin SaechinSTSiriporn Tangsudjai

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Overview

Observational study reveals higher parrot bornavirus infection rates during El Niño phases in traded psittacine birds, suggesting climate-driven viral dynamics.

Key Points

  • To assess temporal patterns and infection rates of parrot bornavirus (PaBV) across different El Niño–Southern Oscillation (ENSO) phases in traded psittacine birds.
  • Monitored traded psittacine birds in Thailand across representative El Niño, La Niña, and neutral climate phases from 2022 to 2025.
  • Used multivariable logistic regression to evaluate associations between PaBV infection, bird family, calendar month, and environmental metrics such as relative humidity and evaporation.
  • The overall PaBV infection rate was significantly higher during the El Niño period (12.09%; 95% CI: 10.50–13.82) than during the La Niña (8.42%; 95% CI: 7.10–9.88) and neutral periods (8.17%; 95% CI: 6.68–9.86; p < 0.001).
  • Family-level analysis revealed significantly higher infection rates during El Niño in Psittacidae (p = 0.005) and Cacatuidae (p = 0.025), with monthly peaks in February and March and an overall negative association with relative humidity.

Cite This Study

Sedwisai et al. (2026) studied this question.

synapsesocial.com/papers/6a7ec6eab70b84ec8b9130a1https://doi.org/10.1186/s12917-026-05813-0
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Molecular detection and genetic characterization of parrot bornavirus in captive psittacine birds in Thailand.2025 · 1 citations
  2. 2Molecular epidemiology of parrot bornaviruses in Guangdong, China: co-circulation of three genotypes in captive parrots2026
  3. 3PARROT BORNAVIRUSES IN PSITTACINES KEPT IN CAPTIVITY IN THE STATE OF SANTA CATARINA, BRAZIL2024
  4. 4Occurrence of bornaviruses, circoviruses and polyomaviruses in necropsy samples from parrots in Poland (2014–2024)2026
  5. 5Application of Quantitative PCR (qPCR) for the Detection of Psittacine Beak and Feather Disease Virus (PBFDV) in Air Conditioning Systems: A Model Study from a Veterinary Hospital in Thailand2026