{"doi":"10.3201/eid2608.191537","title":"Characterizing Norovirus Transmission from Outbreak Data, United States","abstract":"Norovirus is the leading cause of acute gastroenteritis outbreaks in the United States. We estimated the basic (R 0 ) and effective (R e ) reproduction numbers for 7,094 norovirus outbreaks reported to the National Outbreak Reporting System (NORS) during 2009-2017 and used regression models to assess whether transmission varied by outbreak setting. The median R 0 was 2.75 (interquartile range [IQR] 2.38-3.65), and median R e was 1.29 (IQR 1.12-1.74). Long-term care and assisted living facilities had an R 0 of 3.35 (95% CI 3.26-3.45), but R 0 did not differ substantially for outbreaks in other settings, except for outbreaks in schools, colleges, and universities, which had an R 0 of 2.92 (95% CI 2.82-3.03). Seasonally, R 0 was lowest ) in summer and peaked in fall and winter. Overall, we saw little variability in transmission across different outbreaks settings in the United States.","journal":"Emerging infectious diseases","year":2020,"id":103275,"datarank":0.4887144807032224,"base_score":3.258096538021482,"endowment":3.258096538021482,"self_citation_contribution":0.4887144807032224,"citation_network_contribution":0.0,"self_endowment_contribution":0.4887144807032224,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":25,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.6368,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2020-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":325457,"name":"Mary E. Wikswo","orcid":"0000-0001-6894-5041","position":1,"is_corresponding":false},{"id":291908,"name":"Aron J. Hall","orcid":"0000-0001-7250-1013","position":2,"is_corresponding":false},{"id":255231,"name":"Katia Koelle","orcid":"0000-0002-0254-6141","position":3,"is_corresponding":false},{"id":334521,"name":"Andreas Handel","orcid":"0000-0002-4622-1146","position":4,"is_corresponding":false},{"id":412050,"name":"Karen Lévy","orcid":"0000-0002-0968-9401","position":5,"is_corresponding":false},{"id":268911,"name":"Lance A. Waller","orcid":"0000-0001-5002-8886","position":6,"is_corresponding":false},{"id":335729,"name":"Ben Lopman","orcid":null,"position":7,"is_corresponding":false},{"id":503243,"name":"Molly Steele","orcid":"0000-0001-7601-0924","position":0,"is_corresponding":true}],"reference_count":45,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-07-18T22:42:17.920911Z","pmid":"32687043","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}