{"id":"W3200017753","doi":"10.2139/ssrn.3903944","title":"SARS-CoV-2 Seroprevalence During the First and Second Pandemic Waves in Canada","year":2021,"lang":"en","type":"article","venue":"SSRN Electronic Journal","topic":"COVID-19 Clinical Research Studies","field":"Medicine","cited_by":5,"is_retracted":false,"has_abstract":false,"ca_institutions":"St. Michael's Hospital; Toronto Public Health; Lunenfeld-Tanenbaum Research Institute; Mount Sinai Hospital; University of Ottawa; Sinai Health System; University of Toronto; Centre for Global Health Research; University Health Network; St Joseph's Health Centre","funders":"","keywords":"Seroprevalence; Medicine; Demography; Pandemic; Coronavirus disease 2019 (COVID-19); Homogeneous; Odds ratio; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Quarter (Canadian coin); Serology; Virology; Antibody; Immunology; Internal medicine; Geography","routes":{"ca_aff":true,"ca_fund":false,"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":[0.0004994805,0.0004615505,0.0004961724,0.001805722,0.002859358,0.001496934,0.000997484,0.000621484,0.003493604],"category_scores_gemma":[0.001238961,0.00053772,0.0008843067,0.002578196,0.0007442755,0.0005199998,0.001108459,0.001006216,0.0003621063],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.03012249,"about_ca_system_score_gemma":0.04019944,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9975326,"about_ca_topic_score_gemma":0.9981665,"domain_scores_codex":[0.9992018,0.00004740139,0.00003765849,0.0001065192,0.0001818634,0.0004247585],"domain_scores_gemma":[0.9984704,0.00006581534,0.0002066537,0.00003031526,0.0006705614,0.0005562347],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001925249,0.00005232913,0.9903467,0.00003028578,0.00005423955,0.0001152708,0.001776876,0.000163265,0.0002667891,0.0001096231,0.002078146,0.004813888],"study_design_scores_gemma":[0.000009345931,0.00002743508,0.9964366,0.00002661334,0.00001542769,0.00004408018,0.002528729,0.0001614192,0.0000531637,0.00001089761,0.0006743026,0.00001208144],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9927649,0.0005673781,0.00006729841,0.0003848225,0.00002908547,0.00003607708,0.003729488,0.00001511223,0.002405859],"genre_scores_gemma":[0.9956011,0.0004599566,0.00008372757,0.0001476742,0.00000828255,0.00001666064,0.001245245,0.000009408255,0.002428083],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03012249,"threshold_uncertainty_score":0.218555,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02346511953986459,"score_gpt":0.3382421985505525,"score_spread":0.3147770790106879,"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."}}