What is the clinical evidence from this study?

Study design: Other. Population: Goose astrovirus genotype 2 (GAstV-2) infection. Intervention: Goose astrovirus genotype 2 (GAstV-2) inoculation. Primary outcome: Mortality and histopathological lesions.

What question did this study set out to answer?

This research aims to explore the genetic diversity and pathogenic characteristics of goose astrovirus genotype 2 (GAstV-2) and its cross-species transmission potential.

June 19, 2026Poultry ScienceOpen Access

Genetic Diversity and Pathogenicity of Goose Astrovirus Genotype 2 in Geese, Ducks and chickens

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Key result

GAstV-2 strains drive ~20% mortality in goslings and demonstrate cross-species infection potential.

Population

12 GAstV-2 strains isolated from clinical samples of gout-affected goslings in Shandong and Guangdong…

Design

Preclinical

Authors

LLLili LiuLiaocheng University HXHongke XuLiaocheng University YXYujiao XieLiaocheng University

Discussion

Member takes

Implication

Indicates need for vigilance against GAstV-2 in multiple avian species; leaves open questions on control strategies.

Key Points

This research aims to explore the genetic diversity and pathogenic characteristics of goose astrovirus genotype 2 (GAstV-2) and its cross-species transmission potential.
Isolated 12 GAstV-2 strains from gout-affected goslings in Shandong and Guangdong Provinces (2021-2024).
Performed Bayesian time-resolved phylogenetic analysis on complete genome sequences of GAstV-2 strains.
Conducted animal infection experiments to assess replication and pathogenic effects in goslings, ducks, and chickens.
12 GAstV-2 isolates were categorized into two distinct lineages: Lineage 1 (9 strains) and Lineage 2 (3 strains).
Infection experiments resulted in renal hyperemia and swelling, with 20% mortality observed for two strains in goslings.
GAstV-2 effectively infected ducks and chickens, causing similar histopathological lesions affecting the heart, liver, and kidney.

Structured PICO

Population

Animal infection study evaluating 12 Goose astrovirus genotype 2 (GAstV-2) strains isolated from gout-affected goslings in China.

Intervention

Inoculation with GAstV-2 strains

Outcome

Viral replication, histopathological lesions, and mortalitysurrogate

GAstV-2 has evolved into two distinct lineages and demonstrates cross-species infection potential in geese, ducks, and chickens, causing histopathological lesions in multiple organs including the heart.

Cite This Study

Liu et al. (2026) studied Goose astrovirus genotype 2 (GAstV-2) infection. Goose astrovirus genotype 2 (GAstV-2) inoculation was evaluated on Mortality and histopathological lesions. Goose astrovirus genotype 2 (GAstV-2) strains replicated efficiently in goslings, causing up to 20% mortality, and demonstrated cross-species infection potential in ducks and chickens.

synapsesocial.com/papers/6a35982fdd3be7785e70ed34 https://doi.org/10.1016/j.psj.2026.107320

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Genetic Diversity and Pathogenicity of Goose Astrovirus Genotype 2 in Geese, Ducks and chickens

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Genetic Diversity and Pathogenicity of Goose Astrovirus Genotype 2 in Geese, Ducks and chickens

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

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