{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T07:16:24Z","timestamp":1778570184694,"version":"3.51.4"},"reference-count":27,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T00:00:00Z","timestamp":1625097600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2021,7,1]],"date-time":"2021-07-01T00:00:00Z","timestamp":1625097600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2021,5,17]],"date-time":"2021-05-17T00:00:00Z","timestamp":1621209600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010078","name":"Central Denmark Region","doi-asserted-by":"publisher","award":["RR 20200527"],"award-info":[{"award-number":["RR 20200527"]}],"id":[{"id":"10.13039\/501100010078","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","ijidonline.com","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Infectious Diseases"],"published-print":{"date-parts":[[2021,7]]},"DOI":"10.1016\/j.ijid.2021.05.032","type":"journal-article","created":{"date-parts":[[2021,5,19]],"date-time":"2021-05-19T21:55:12Z","timestamp":1621461312000},"page":"382-390","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":21,"special_numbering":"C","title":["Day-by-day symptoms following positive and negative PCR tests for SARS-CoV-2 in non-hospitalized healthcare workers: A 90-day follow-up study"],"prefix":"10.1016","volume":"108","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4643-5697","authenticated-orcid":false,"given":"Kent J.","family":"Nielsen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7435-6566","authenticated-orcid":false,"given":"Jesper Medom","family":"Vestergaard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4915-1734","authenticated-orcid":false,"given":"Vivi","family":"Schl\u00fcnssen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jens Peter","family":"Bonde","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7973-3623","authenticated-orcid":false,"given":"Kathrine Agerg\u00e5rd","family":"Kaspersen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7038-9566","authenticated-orcid":false,"given":"Karin","family":"Biering","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ole","family":"Carstensen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3232-7895","authenticated-orcid":false,"given":"Thomas","family":"Greve","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karoline K\u00e6rgaard","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Annett","family":"Dalb\u00f8ge","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Esben Meulengracht","family":"Flachs","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sanne","family":"Jespersen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6910-8234","authenticated-orcid":false,"given":"Mette Lausten","family":"Hansen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7806-1143","authenticated-orcid":false,"given":"Susan","family":"Mikkelsen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marianne Kragh","family":"Thomsen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8588-9547","authenticated-orcid":false,"given":"Jacob Dvinge","family":"Redder","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Else Toft","family":"W\u00fcrtz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lars","family":"\u00d8stergaard","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Erikstrup","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6535-4323","authenticated-orcid":false,"given":"Henrik Albert","family":"Kolstad","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"8","key":"10.1016\/j.ijid.2021.05.032_bib0005","doi-asserted-by":"crossref","first-page":"729","DOI":"10.1001\/jamaoto.2020.1379","article-title":"Evolution of altered sense of smell or taste in patients with mildly symptomatic COVID-19","volume":"146","author":"Boscolo-Rizzo","year":"2020","journal-title":"JAMA Otolaryngol Head Neck Surg"},{"issue":"6","key":"10.1016\/j.ijid.2021.05.032_bib0010","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1001\/jama.2020.12603","article-title":"Persistent symptoms in patients after acute COVID-19","volume":"324","author":"Carf\u00ec","year":"2020","journal-title":"JAMA"},{"key":"10.1016\/j.ijid.2021.05.032_bib0015","article-title":"Long-term COVID-19 symptoms in a large unselected population","author":"Cirulli","year":"2020","journal-title":"medRxiv"},{"issue":"3","key":"10.1016\/j.ijid.2021.05.032_bib0020","doi-asserted-by":"crossref","DOI":"10.2807\/1560-7917.ES.2020.25.3.2000045","article-title":"Detection of 2019 novel coronavirus (2019-nCoV) by real-time RT-PCR","volume":"25","author":"Corman","year":"2020","journal-title":"Euro Surveill"},{"issue":"17","key":"10.1016\/j.ijid.2021.05.032_bib0025","doi-asserted-by":"crossref","first-page":"1723","DOI":"10.1001\/jama.2020.19719","article-title":"Long-term health consequences of COVID-19","volume":"324","author":"del Rio","year":"2020","journal-title":"JAMA"},{"issue":"March (3)","key":"10.1016\/j.ijid.2021.05.032_bib0030","article-title":"Multi-organ impairment in low-risk individuals with long COVID","volume":"11","author":"Dennis","year":"2021","journal-title":"BMJ Open"},{"key":"10.1016\/j.ijid.2021.05.032_bib0035","doi-asserted-by":"crossref","first-page":"m1985","DOI":"10.1136\/bmj.m1985","article-title":"Features of 20 133 UK patients in hospital with COVID-19 using the ISARIC WHO clinical characterisation protocol: prospective observational cohort study","volume":"369","author":"Docherty","year":"2020","journal-title":"BMJ"},{"key":"10.1016\/j.ijid.2021.05.032_bib0040","series-title":"Nurse with corona: the worst I\u2019ve experienced (in Danish)","author":"DR (Danish Broadcasting Corporation)","year":"2020"},{"key":"10.1016\/j.ijid.2021.05.032_bib0045","series-title":"COVID-19 situation update worldwide, as of 12 December","author":"European Centre for Disease Prevention and Control","year":"2020"},{"key":"10.1016\/j.ijid.2021.05.032_bib0050","doi-asserted-by":"crossref","first-page":"m4529","DOI":"10.1136\/bmj.m4529","article-title":"Clinical spectrum of coronavirus disease 2019 in Iceland: population-based cohort study","volume":"371","author":"Eythorsson","year":"2020","journal-title":"BMJ"},{"issue":"18","key":"10.1016\/j.ijid.2021.05.032_bib0055","doi-asserted-by":"crossref","first-page":"1708","DOI":"10.1056\/NEJMoa2002032","article-title":"Clinical characteristics of coronavirus disease 2019 in China","volume":"382","author":"Guan","year":"2020","journal-title":"N Engl J Med"},{"issue":"10270","key":"10.1016\/j.ijid.2021.05.032_bib0060","doi-asserted-by":"crossref","first-page":"220","DOI":"10.1016\/S0140-6736(20)32656-8","article-title":"6-month consequences of COVID-19 in patients discharged from hospital: a cohort study","volume":"397","author":"Huang","year":"2021","journal-title":"Lancet"},{"key":"10.1016\/j.ijid.2021.05.032_bib0065","article-title":"SARS-CoV-2 seroprevalence survey among 17,971 healthcare and administrative personnel at hospitals, pre-hospital services, and specialist practitioners in the Central Denmark Region","author":"Jespersen","year":"2020","journal-title":"Clin Infect Dis"},{"key":"10.1016\/j.ijid.2021.05.032_bib0070","doi-asserted-by":"crossref","first-page":"m2815","DOI":"10.1136\/bmj.m2815","article-title":"Covid-19: what do we know about\u2019 long covid\u2019?","volume":"370","author":"Mahase","year":"2020","journal-title":"BMJ"},{"issue":"7825","key":"10.1016\/j.ijid.2021.05.032_bib0075","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1038\/d41586-020-02598-6","article-title":"The lasting misery of coronavirus long-haulers","volume":"585","author":"Marshall","year":"2020","journal-title":"Nature"},{"issue":"1","key":"10.1016\/j.ijid.2021.05.032_bib0080","doi-asserted-by":"crossref","first-page":"6208","DOI":"10.1038\/s41467-020-20053-y","article-title":"Longitudinal symptom dynamics of COVID-19 infection","volume":"11","author":"Mizrahi","year":"2020","journal-title":"Nat Commun"},{"issue":"April (4)","key":"10.1016\/j.ijid.2021.05.032_bib0085","first-page":"626","article-title":"Attributes and predictors of long-COVID: analysis of COVID cases and their symptoms collected by the Covid Symptoms Study app","volume":"27","author":"Murray","year":"2021","journal-title":"Nat Med"},{"key":"10.1016\/j.ijid.2021.05.032_bib0090","series-title":"Living with COVID19","author":"NIHR","year":"2000"},{"issue":"6","key":"10.1016\/j.ijid.2021.05.032_bib0095","doi-asserted-by":"crossref","first-page":"1144","DOI":"10.1177\/0194599820939538","article-title":"Olfactory and gustatory outcomes in COVID-19: a prospective evaluation in nonhospitalized subjects","volume":"163","author":"Paderno","year":"2020","journal-title":"Otolaryngol Head Neck Surg"},{"issue":"6","key":"10.1016\/j.ijid.2021.05.032_bib0100","doi-asserted-by":"crossref","DOI":"10.1016\/j.amjoto.2020.102639","article-title":"Subjective smell and taste changes during the COVID-19 pandemic: short term recovery","volume":"41","author":"Reiter","year":"2020","journal-title":"Am J Otolaryngol"},{"issue":"7","key":"10.1016\/j.ijid.2021.05.032_bib0105","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1038\/s41577-020-0348-8","article-title":"Considering how biological sex impacts immune responses and COVID-19 outcomes","volume":"20","author":"Scully","year":"2020","journal-title":"Nat Rev Immunol"},{"key":"10.1016\/j.ijid.2021.05.032_bib0110","series-title":"Instructions for handling COVID-19 in the health care system (in Danish)","author":"Statens Serum Institut","year":"2020"},{"key":"10.1016\/j.ijid.2021.05.032_bib0115","series-title":"Monitoring COVID-19 (in Danish)","author":"Statens Serum Institut","year":"2020"},{"issue":"30","key":"10.1016\/j.ijid.2021.05.032_bib0120","doi-asserted-by":"crossref","first-page":"993","DOI":"10.15585\/mmwr.mm6930e1","article-title":"Symptom duration and risk factors for delayed return to usual health among outpatients with COVID-19 in a multistate health care systems network \u2014 United States, March-June 2020","volume":"69","author":"Tenforde","year":"2020","journal-title":"MMWR Morb Mortal Wkly Rep"},{"issue":"8","key":"10.1016\/j.ijid.2021.05.032_bib0125","doi-asserted-by":"crossref","first-page":"703","DOI":"10.1017\/S0022215120001826","article-title":"Smell and taste recovery in coronavirus disease 2019 patients: a 60-day objective and prospective study","volume":"134","author":"Vaira","year":"2020","journal-title":"J Laryngol Otol"},{"issue":"10","key":"10.1016\/j.ijid.2021.05.032_bib0130","doi-asserted-by":"crossref","first-page":"1299","DOI":"10.1038\/s41564-020-0761-6","article-title":"Analytical sensitivity and efficiency comparisons of SARS-CoV-2 RT-qPCR primer-probe sets","volume":"5","author":"Vogels","year":"2020","journal-title":"Nat Microbiol"},{"issue":"10","key":"10.1016\/j.ijid.2021.05.032_bib0135","doi-asserted-by":"crossref","first-page":"1115","DOI":"10.1016\/S1473-3099(20)30701-5","article-title":"Long-term consequences of COVID-19: research needs","volume":"20","author":"Yelin","year":"2020","journal-title":"Lancet Infect Dis"}],"container-title":["International Journal of Infectious Diseases"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1201971221004343?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1201971221004343?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T08:00:41Z","timestamp":1761120041000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1201971221004343"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,7]]},"references-count":27,"alternative-id":["S1201971221004343"],"URL":"https:\/\/doi.org\/10.1016\/j.ijid.2021.05.032","relation":{"has-preprint":[{"id-type":"doi","id":"10.1101\/2021.03.02.21252437","asserted-by":"object"}]},"ISSN":["1201-9712"],"issn-type":[{"value":"1201-9712","type":"print"}],"subject":[],"published":{"date-parts":[[2021,7]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Day-by-day symptoms following positive and negative PCR tests for SARS-CoV-2 in non-hospitalized healthcare workers: A 90-day follow-up study","name":"articletitle","label":"Article Title"},{"value":"International Journal of Infectious Diseases","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ijid.2021.05.032","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2021 The Authors. Published by Elsevier Ltd on behalf of International Society for Infectious Diseases.","name":"copyright","label":"Copyright"}]}}