{"doi":"10.1093/infdis/jiaa579","title":"High Seroprevalence of Anti-SARS-CoV-2 Antibodies in Chelsea, Massachusetts","abstract":"SARS-CoV-2 antibody testing allows quantitative determination of disease prevalence, which is especially important in high-risk communities. We performed anonymized convenience sampling of 200 currently asymptomatic residents of Chelsea, the epicenter of COVID-19 illness in Massachusetts, by BioMedomics SARS-CoV-2 combined IgM-IgG point-of-care lateral flow immunoassay. The seroprevalence was 31.5% (17.5% IgM+IgG+, 9.0% IgM+IgG-, and 5.0% IgM-IgG+). Of the 200 participants, 50.5% reported no symptoms in the preceding 4 weeks, of which 24.8% (25/101) were seropositive, and 60% of these were IgM+IgG-. These data are the highest seroprevalence rates observed to date and highlight the significant burden of asymptomatic infection.","journal":"The Journal of Infectious Diseases","year":2020,"id":57339,"datarank":0.6573039952010823,"base_score":4.382026634673881,"endowment":4.382026634673881,"self_citation_contribution":0.6573039952010823,"citation_network_contribution":0.0,"self_endowment_contribution":0.6573039952010823,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":79,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9439,"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":299125,"name":"Christina C. Chang","orcid":"0000-0003-0109-0725","position":1,"is_corresponding":false},{"id":260880,"name":"Wilfredo F. Garcia Beltran","orcid":null,"position":2,"is_corresponding":false},{"id":88689,"name":"Tyler E. Miller","orcid":"0000-0002-1269-1895","position":3,"is_corresponding":false},{"id":108253,"name":"Michael G. Astudillo","orcid":null,"position":4,"is_corresponding":false},{"id":231955,"name":"Julian A. Villalba","orcid":"0000-0001-9230-8747","position":5,"is_corresponding":false},{"id":108254,"name":"Diane Yang","orcid":"0000-0002-2229-0622","position":6,"is_corresponding":false},{"id":235416,"name":"Jeffrey A. Gelfand","orcid":"0000-0002-4118-5676","position":7,"is_corresponding":false},{"id":235415,"name":"B Bernstein","orcid":"0000-0002-5726-6278","position":8,"is_corresponding":false},{"id":104325,"name":"Jared Feldman","orcid":"0000-0002-4387-9954","position":9,"is_corresponding":false},{"id":104324,"name":"Blake M. Hauser","orcid":"0000-0002-0100-1684","position":10,"is_corresponding":false},{"id":106553,"name":"Timothy M. Caradonna","orcid":"0000-0001-7138-4441","position":11,"is_corresponding":false},{"id":106757,"name":"Galit Alter","orcid":"0000-0002-7680-9215","position":12,"is_corresponding":false},{"id":108257,"name":"Mandakolathur R. Murali","orcid":null,"position":13,"is_corresponding":false},{"id":42801,"name":"Rashmi Jasrasaria","orcid":"0000-0002-6092-6222","position":14,"is_corresponding":false},{"id":300385,"name":"Joan Quinlan","orcid":null,"position":15,"is_corresponding":false},{"id":300386,"name":"Dean Xerras","orcid":null,"position":16,"is_corresponding":false},{"id":300387,"name":"Joseph R. Betancourt","orcid":null,"position":17,"is_corresponding":false},{"id":11410,"name":"David N. Louis","orcid":"0000-0002-9423-4099","position":18,"is_corresponding":false},{"id":104357,"name":"Aaron G. Schmidt","orcid":"0000-0003-3627-2553","position":19,"is_corresponding":false},{"id":108261,"name":"Jochen K. Lennerz","orcid":"0000-0003-2434-4978","position":20,"is_corresponding":false},{"id":257712,"name":"Mark C. Poznansky","orcid":"0000-0003-1344-7103","position":21,"is_corresponding":false},{"id":28992,"name":"A. John Iafrate","orcid":"0000-0002-7888-4067","position":22,"is_corresponding":false},{"id":292648,"name":"Vivek Naranbhai","orcid":"0000-0003-4281-8882","position":0,"is_corresponding":true}],"reference_count":18,"raw_metadata":{"citation_network_status":"fetched"},"created_at":"2026-07-18T21:06:31.136481Z","pmid":"32906151","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":[]}