Avian hepatitis E virus identified in Russian chicken flocks exhibits high genetic divergence based on the ORF2 capsid gene
Why this work is in the frame
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Bibliographic record
Abstract
A total of 79 liver samples from clinically sick and asymptomatic chickens were tested for avian hepatitis E virus (aHEV). Samples were received from 19 farms, five of which tested positive with primers targeting the ORF2 capsid gene. The phylogenetic analysis of a 242-base-pair fragment demonstrated that the Russian aHEV isolates share between 78.2 and 96.2% over the fragment sequenced, whereas the nucleotide sequence identities between the Russian isolates and the other representatives from GeneBank varied from 76.3 to 96.2%. The homology between the studied hepatitis E viruses and swine hepatitis E virus varied between 46.9 to 48.1%. The most divergent isolate aHEV16050 showed homology of 82.6% as compared with the strains in the dendrogram. The three positive hepatitis E virus samples (aHEV16279, aHEV16050 and aHEV18196) did not cluster with the European genotype 3 as expected due to the close location of Russia to Europe, nor did they with the other two genotypes, separating to a distinct branch. The aHEV16211 grouped together with European and Chinese isolates, and the aHEV18198 with Canadian ones.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it