{"doi":"10.4269/ajtmh.21-0592","title":"Assessment of the Field Utility of a Rapid Point-of-Care Test for SARS-CoV-2 Antibodies in a Household Cohort","abstract":"Point-of-care (POC) tests to detect SARS-CoV-2 antibodies offer quick assessment of serostatus after natural infection or vaccination. We compared the field performance of the BioMedomics COVID-19 IgM/IgG Rapid Antibody Test against an ELISA in 303 participants enrolled in a SARS-CoV-2 household cohort study. The rapid antibody test was easily implemented with consistent interpretation across 14 users in a variety of field settings. Compared with ELISA, detection of seroconversion lagged by 5 to 10 days. However, it retained a sensitivity of 90% (160/177, 95% confidence interval [CI] 85-94%) and specificity of 100% (43/43, 95% CI 92-100%) for those tested 3 to 5 weeks after symptom onset. Sensitivity was diminished among those with asymptomatic infection (74% [14/19], 95% CI 49-91%) and early in infection (45% [29/64], 95% CI 33-58%). When used appropriately, rapid antibody tests offer a convenient way to detect symptomatic infections during convalescence.","journal":"American Journal of Tropical Medicine and Hygiene","year":2021,"id":201887,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":7,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9603,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2021-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":647362,"name":"Kelly Lin","orcid":null,"position":1,"is_corresponding":false},{"id":781354,"name":"Salman Khan","orcid":"0000-0001-8732-3395","position":2,"is_corresponding":false},{"id":647359,"name":"Srijana Chhetri","orcid":null,"position":3,"is_corresponding":false},{"id":647357,"name":"Meredith Muller","orcid":null,"position":4,"is_corresponding":false},{"id":351309,"name":"Kathleen Tompkins","orcid":"0000-0001-6537-4327","position":5,"is_corresponding":false},{"id":647360,"name":"J. W. G. Smith","orcid":null,"position":6,"is_corresponding":false},{"id":647361,"name":"Christy Litel","orcid":null,"position":7,"is_corresponding":false},{"id":647358,"name":"Maureen Whittelsey","orcid":null,"position":8,"is_corresponding":false},{"id":646736,"name":"C. Andrew Basham","orcid":"0000-0003-0506-7936","position":9,"is_corresponding":false},{"id":646735,"name":"Tyler Rapp","orcid":"0000-0001-7166-1015","position":10,"is_corresponding":false},{"id":647355,"name":"Carla Cerami","orcid":null,"position":11,"is_corresponding":false},{"id":103773,"name":"Lakshmanane Premkumar","orcid":"0000-0002-1736-1350","position":12,"is_corresponding":false},{"id":428587,"name":"Jessica T. Lin","orcid":"0000-0002-4516-723X","position":13,"is_corresponding":false},{"id":647363,"name":"Mehal Churiwal","orcid":null,"position":0,"is_corresponding":true}],"reference_count":19,"raw_metadata":null,"created_at":"2026-07-18T23:51:05.955461Z","pmid":"34818625","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":[]}