{"id":"W4200308140","doi":"10.1017/ice.2021.502","title":"Persistence of infectivity in elderly individuals diagnosed with severe acute respiratory coronavirus virus 2 (SARS-CoV-2) infection 10 days after onset of symptoms: A cross-sectional study","year":2021,"lang":"en","type":"article","venue":"Infection Control and Hospital Epidemiology","topic":"SARS-CoV-2 detection and testing","field":"Medicine","cited_by":6,"is_retracted":false,"has_abstract":true,"ca_institutions":"Université de Montréal; Institut National de Santé Publique du Québec; Ste. Anne's Hospital; Jewish General Hospital","funders":"","keywords":"Infectivity; Coronavirus; Persistence (discontinuity); Medicine; Virus; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Cross-sectional study; Virology; Respiratory system; Coronavirus disease 2019 (COVID-19); 2019-20 coronavirus outbreak; Internal medicine; Immunology; Pathology; Disease; Outbreak","routes":{"ca_aff":true,"ca_fund":false,"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":[0.0008643764,0.0003759234,0.0003240649,0.000677861,0.0006371457,0.0005549658,0.0002326922,0.0006361752,0.0006792665],"category_scores_gemma":[0.002543479,0.0004207121,0.0003067065,0.0003664563,0.000325591,0.0006162851,0.0003643279,0.0005976574,0.0002061933],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000212721,"about_ca_system_score_gemma":0.0002236446,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003708958,"about_ca_topic_score_gemma":0.003751767,"domain_scores_codex":[0.9995841,0.0001350554,0.00004792796,0.00009254431,0.00006904496,0.00007132853],"domain_scores_gemma":[0.9986558,0.000303048,0.0004425141,0.00008446319,0.0002485439,0.0002656193],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001080675,0.00008695295,0.9986125,0.000005320294,0.00002469512,0.0001018322,0.0002442862,0.000007411413,0.0003470432,0.000003303478,0.00002594246,0.0004326062],"study_design_scores_gemma":[0.000008182484,0.0005434663,0.9983844,0.000005051886,0.00002647979,0.0004322954,0.0003659824,0.00005947144,0.00007695082,0.000005340895,0.00008843136,0.000004008058],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9997715,0.00006441794,0.00002570146,0.000007158018,0.000002746972,0.00000437985,0.00003938638,6.953982e-7,0.00008408094],"genre_scores_gemma":[0.9997042,0.00004986852,0.00004171028,0.00003005047,0.000008246448,0.000006130614,0.00008684999,7.638922e-7,0.00007220801],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.003708958,"threshold_uncertainty_score":0.007374763,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05282478655364632,"score_gpt":0.350294238895584,"score_spread":0.2974694523419377,"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."}}