A systematic review of tetanus in individuals with previous tetanus toxoid immunization
Bibliographic record
Abstract
OBJECTIVES: To assess the characteristics of tetanus in previously immunized individuals. METHODS: A systematic literature search was undertaken using Ovid MEDLINE(R) and EMBASE databases for articles published between 1946 and September 3, 2013. The search strategy was developed using MESH terms for "tetanus", "immunization" and "vaccination". Inclusion criteria were articles in English or French that described at least one case of tetanus, immunization history and/or the results of anti-tetanus antibodies. Articles were reviewed for relevant references. RESULTS: 51 unique articles published from1946-2013 were included in the review. The articles described 359 cases of clinical tetanus in individuals with prior receipt of one or more doses of tetanus toxoid vaccine and/or levels of tetanus antibody titres generally considered protective. Of the 210 cases that reported patient status at discharge, 180 (85.7%) survived with only three cases reporting residual deficits. CONCLUSION: Tetanus spores are ubiquitous and this report clearly documents that tetanus cases can occur in individuals previously immunized with tetanus toxoid vaccine. Clinicians should not rule out tetanus when clinical symptoms suggest it, regardless of the vaccination history. When treated, the prognosis for tetanus is good. Further research is needed to assess the incidence of tetanus in partially- and fully-immunized populations and determine whether this is due to waning immunity of vaccine failure.
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How this classification was reachedexpand
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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".