Quadrivalent meningococcal serogroups A, C, W, and Y tetanus toxoid conjugate vaccine (MenACWY-TT): a review
Bibliographic record
Abstract
INTRODUCTION: Meningococcal disease poses serious health risks globally. The six Neisseria meningitidis serogroups responsible for most of the disease burden are A, B, C, W, X and Y. The case fatality rate remains high worldwide and prevention by vaccination remains the best strategy. Because polysaccharide vaccines are poorly immunogenic in young children, conjugated vaccines were developed to overcome this drawback. The quadrivalent meningococcal conjugate vaccine (MenACWY-TT), comprising the serogroups A, C, W and Y conjugated to tetanus toxoid carrier protein (marketed under the trade name Nimenrix ™), is the first quadrivalent vaccine to be approved in Europe as a single dose for ages 12 months and in Canada for ages 12 months to 55 years. AREAS COVERED: This review addresses the limitations posed by polysaccharide vaccines, compares them with the MenACWY-TT conjugated alternative, and focuses on the clinical studies that investigate the immunogenicity and reactogenicity of MenACWY-TT in various age groups and its co-administration with other vaccines compatible with each age group. EXPERT OPINION: Evidence suggests that MenACWY-TT has a good immunogenicity profile across a broad age range including toddlers, children, adolescents, and adults. It also has an acceptable safety profile and is well tolerated when administered with other vaccines.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 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".