{"id":"W3132006510","doi":"10.1016/j.ajic.2021.02.004","title":"Positive no-touch surfaces and undetectable SARS-CoV-2 aerosols in long-term care facilities: An attempt to understand the contributing factors and the importance of timing in air sampling campaigns","year":2021,"lang":"en","type":"article","venue":"American Journal of Infection Control","topic":"Infection Control and Ventilation","field":"Medicine","cited_by":43,"is_retracted":false,"has_abstract":false,"ca_institutions":"Lunenfeld-Tanenbaum Research Institute; Université Laval; Université de Montréal; Centre intégré universitaire de santé et de services sociaux de la Capitale-Nationale; Jewish General Hospital; University of Toronto; Sinai Health System; Sunnybrook Health Science Centre; Institut universitaire de cardiologie et de pneumologie de Québec","funders":"Fonds de Recherche du Québec - Santé; University of Toronto; Institut de Recherche Robert-Sauvé en Santé et en Sécurité du Travail","keywords":"Aerosolization; Medicine; Outbreak; Pandemic; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Transmission (telecommunications); Coronavirus disease 2019 (COVID-19); Isolation (microbiology); Virology; Population; Infection control; Environmental health; Infectious disease (medical specialty); Disease; Intensive care medicine; Microbiology; Biology; Pathology","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":[0.00109645,0.0004979486,0.0003706952,0.0008194314,0.001002858,0.001424521,0.0007887742,0.001412831,0.002355287],"category_scores_gemma":[0.005438413,0.0004641226,0.0004861208,0.0008357036,0.0009482548,0.0009368351,0.00083355,0.001111904,0.0002502638],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009188167,"about_ca_system_score_gemma":0.001390502,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.014809,"about_ca_topic_score_gemma":0.01698096,"domain_scores_codex":[0.9986902,0.0004422585,0.0001219537,0.0002068286,0.0002002095,0.0003386341],"domain_scores_gemma":[0.9957489,0.00148179,0.00166429,0.0001961152,0.00034555,0.0005632981],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001536458,0.00008374378,0.9984097,0.00000846745,0.00001092771,0.0002150522,0.0002055339,0.00002643355,0.0002892357,0.00002480208,0.00002867027,0.000543753],"study_design_scores_gemma":[0.000003492279,0.0003216604,0.9969613,0.000008616068,0.00001881687,0.000531263,0.001676112,0.0002746771,0.0001080692,0.00003876978,0.00005111041,0.000006129924],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9992765,0.0001164497,0.00006961558,0.00005157037,0.00000641993,0.000007469455,0.00005072786,0.000002109132,0.000419143],"genre_scores_gemma":[0.9997764,0.00003450544,0.00005816762,0.00002619998,0.000009642885,0.000003602211,0.00002601898,9.141378e-7,0.00006456284],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.014809,"threshold_uncertainty_score":0.02944565,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02315462218745748,"score_gpt":0.3065295787759119,"score_spread":0.2833749565884544,"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."}}