A 21-Year-Old Returned Traveller with Typhoid Fever Complicated By a Multifactorial Anemia and Splenic Infarction
Bibliographic record
Abstract
Typhoid fever is a rare disease in North America. We present the case of a 21-year-old female who developed invasive Salmonella typhi infection after returning from rural Pakistan. The patient presented with classic signs of enteric infection including high fever, diarrhea, and a tongue coated in white patches. The patient developed hematologic complications of anemia and splenic infarction. Investigations, imaging studies and treatment are discussed. The case outlines both common and uncommon complications of typhoid fever and reminds the clinician of its importance in the differential of fever in the returning traveller. Four key point to consider are: 1. Fever in a returning traveler has a broad differential diagnosis, but concurrent abdominal symptoms should result in blood cultures to assess for gram-negative bacteria. 2. Ceftriaxone, azithromycin, or fluoroquinolones are the treatments of choice for Salmonella typhi, although clinicians should be aware of increasing resistance to the latter and base treatment on sensitivity testing. 3. Anemia during typhoid fever can be multifactorial and include elements of gastrointestinal blood loss, hemolysis and transient marrow suppression. 4. Spleen involvement can lead to complications such as splenic infarction or abscess formation.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.003 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".