{"id":"W4413326744","doi":"10.1016/j.vaccine.2025.127630","title":"COVID-19 hoax belief endorsement and its implications for vaccine uptake: Investigating the role of perceived threat","year":2025,"lang":"en","type":"article","venue":"Vaccine","topic":"Misinformation and Its Impacts","field":"Social Sciences","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"Social Sciences and Humanities Research Council; Social Sciences and Humanities Research Council of Canada","keywords":"Hoax; Coronavirus disease 2019 (COVID-19); 2019-20 coronavirus outbreak; Virology; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Pandemic; Psychology; Medicine; Immunology; Infectious disease (medical specialty); Outbreak; Alternative medicine; Disease","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.003575796,0.0002077995,0.0001976609,0.0003898585,0.000407436,0.0008779785,0.0002750425,0.0003948934,0.004057888],"category_scores_gemma":[0.01528919,0.0001141191,0.0003831632,0.0003071106,0.000555535,0.0005131566,0.0007953422,0.001223393,0.0001621214],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004557282,"about_ca_system_score_gemma":0.0006801527,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005083255,"about_ca_topic_score_gemma":0.005507529,"domain_scores_codex":[0.9987566,0.0006277678,0.00006801204,0.0001295268,0.0002332971,0.0001848357],"domain_scores_gemma":[0.9863615,0.007303402,0.0041324,0.0006598958,0.0006216915,0.000921139],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0005432194,0.0004352692,0.9791519,0.00007137291,0.000156922,0.0000761647,0.003607576,0.0001415579,0.0009022524,0.0007353351,0.0001673532,0.01401101],"study_design_scores_gemma":[0.00001913441,0.0005544303,0.9935343,0.0000627984,0.000117089,0.00008150375,0.002369021,0.001230981,0.0006935679,0.0006736759,0.0006529227,0.00001049149],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9978102,0.0001165023,0.0002227024,0.0002346656,0.00000799494,0.000009588604,0.00006964016,0.000001513359,0.001527127],"genre_scores_gemma":[0.9996057,0.00003788283,0.0001021824,0.00002881935,0.000005598326,0.00000734287,0.00003459981,7.435376e-7,0.0001771153],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.005083255,"threshold_uncertainty_score":0.01891088,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04017811839208564,"score_gpt":0.3535670736877458,"score_spread":0.3133889552956602,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}