Genetic Variants of <i>Anaplasma phagocytophilum</i> Infecting Dogs in Western Washington State
Why this work is in the frame
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Bibliographic record
Abstract
Eight dogs from western Washington State suspected of being infected with Anaplasma phagocytophilum because of the finding of morulae in peripheral blood neutrophils were studied for determination of the etiologic agent of disease. All cases were diagnosed between April 2003 and April 2004. Six of the eight dogs had no travel history during the 6 months prior to presentation. Two dogs had traveled within the Northwest United States and Canada. Fever, lethargy, and anorexia were the most common clinical signs in the dogs. Lymphopenia, thrombocytopenia, and an elevated activity of alkaline phosphatase in the serum were the most common laboratory findings. All dogs tested during the acute phase of clinical signs were seropositive for A. phagocytophilum antibodies but negative for Ehrlichia canis antibodies. PCR amplification and direct sequencing of portions of the 16S rRNA gene from the whole blood of all seven dogs that were tested yielded A. phagocytophilum after a comparison to bacterial sequences available in the GenBank database. Five genetic variants were identified based on one or two nucleotide differences in the 16S rRNA gene sequences at nucleotide positions 54, 84, 86, and 120. Individual dogs were infected with more than one variant. Treatment with doxycycline or tetracycline resulted in a rapid resolution of clinical signs. The occurrence of canine granulocytic anaplasmosis in western Washington State suggests that A. phagocytophilum infection should be considered in differential diagnoses of dogs presenting with lethargy, anorexia, fever, and lameness, particularly in the context of lymphopenia, thrombocytopenia, and increased serum alkaline phosphatase. The zoonotic importance of A. phagocytophilum should support an increase in surveillance for horses and people residing in this area.
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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 | 0.002 | 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 | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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