{"id":"W4407448300","doi":"10.1186/s12879-025-10610-5","title":"Impact of disease severity, age, sex, comorbidity, and vaccination on secondary attack rates of SARS-CoV-2: a global systematic review and meta-analysis","year":2025,"lang":"en","type":"review","venue":"BMC Infectious Diseases","topic":"SARS-CoV-2 and COVID-19 Research","field":"Medicine","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"Nova Scotia Health Authority; Izaak Walton Killam Health Centre; Dalhousie University; York University","funders":"Natural Sciences and Engineering Research Council of Canada; Canadian Immunization Research Network; Notsew Orm Sands Foundation","keywords":"Meta-analysis; Comorbidity; Medical microbiology; Medicine; Coronavirus disease 2019 (COVID-19); Disease; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Parasitology; 2019-20 coronavirus outbreak; Vaccination; Tropical medicine; Infectious disease (medical specialty); Immunology; Virology; Internal medicine; Pathology; Outbreak","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":true,"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":[0.01489908,0.002763185,0.02238733,0.009625113,0.0007181379,0.00381946,0.002223168,0.002263067,0.003929675],"category_scores_gemma":[0.03356874,0.001441333,0.04162201,0.01094209,0.0007722773,0.002339682,0.001780305,0.001824041,0.0003900561],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002752827,"about_ca_system_score_gemma":0.005438246,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0073901,"about_ca_topic_score_gemma":0.01509121,"domain_scores_codex":[0.9905894,0.003418559,0.003564671,0.0009768228,0.001132706,0.0003177925],"domain_scores_gemma":[0.9786373,0.01564503,0.003106496,0.0006343507,0.001754369,0.0002224],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"systematic_review","study_design_gemma":"meta_analysis","study_design_scores_codex":[0.001118869,0.00002192315,0.003320132,0.5963107,0.3802984,0.000100788,0.00009414642,0.0004061005,0.0001816713,0.0001348289,0.0008848119,0.01712761],"study_design_scores_gemma":[0.000363773,0.0001502351,0.003938648,0.06372028,0.9286379,0.0001207617,0.00005704526,0.0001568052,0.00009904178,0.0002292365,0.002496086,0.00003016139],"study_design_candidate":"meta_analysis","study_design_consensus":null,"genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.002319267,0.996014,0.0003624975,0.0001902994,0.0000903254,0.0002319444,0.0005729994,0.00001942656,0.0001994058],"genre_scores_gemma":[0.06515089,0.929722,0.00171046,0.0008095845,0.0002052505,0.001089674,0.001008943,0.00003674231,0.0002664702],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.02238733,"threshold_uncertainty_score":0.07879484,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1280833276396664,"score_gpt":0.4651108958648847,"score_spread":0.3370275682252183,"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."}}