Management of non-response to Hepatitis B re-vaccination
Bibliographic record
Abstract
BACKGROUND: Bloodborne viruses, including Hepatitis B (HBV), are a known occupational hazard for healthcare workers (HCWs), particularly those involved in exposure-prone procedures. Whilst standard vaccines can provide immunity, 5-10% of people remain non-responders (anti-HBs titre <10IU/L) despite repeated vaccinations. Fendrix® (HBV recombinant DNA vaccine) has been shown to be highly effective in renal patients and those with human immunodeficiency virus, implying it may also have benefits for healthy non-responders. AIMS: Our analysis set out to identify and compare response rates to re-vaccination (with Fendrix® or HBvaxPro40®) in HCWs with non-response to standard vaccination procedures. METHODS: Between 1 March 2010 and 30 April 2024, either Fendrix® or HBvaxPro40® was offered to HCWs with inadequate response to two courses of Engerix B® standard vaccination. Antibody tests were performed 6 weeks post-final vaccine dose. Serological results from this period were retrospectively statistically analysed to compare differential vaccine responses. RESULTS: Eighty-five HCWs were identified as non-responders and offered further vaccination (42 received Fendrix® and 43 received HBvaxPro40®). Fendrix® resulted in a seroconversion rate of 95% (40/42) compared to 72% (31/43) with HBvaxPro40®; a significantly higher number responded more strongly to Fendrix® (74% versus 23%). CONCLUSIONS: Our results demonstrate the rationale for offering additional vaccination with Fendrix® to HCWs when standard vaccination and repeated administration has not elicited an adequate immune response. Multi-centre evaluation of this vaccination strategy for non-responder HCWs should be considered to generate evidence for the most acceptable and efficacious approach.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".