{"entity": "researcher", "timestamp": "2026-06-07T08:30:17.084Z", "family": "Olofsson", "given": "Jennie", "initials": "J", "orcid": "0000-0002-8593-9089", "affiliations": ["Division of Affinity Proteomics Department of Protein Science KTH Royal Institute of Technology SciLifeLab Stockholm Sweden."], "links": {"self": {"href": "https://publications.scilifelab.se/researcher/d2b59febdeec4df99bf3a0d5480df305.json"}, "display": {"href": "https://publications.scilifelab.se/researcher/d2b59febdeec4df99bf3a0d5480df305"}}, "publications": [{"entity": "publication", "iuid": "662e6300d57a45818e6a52bf43aa890a", "links": {"self": {"href": "https://publications.scilifelab.se/publication/662e6300d57a45818e6a52bf43aa890a.json"}, "display": {"href": "https://publications.scilifelab.se/publication/662e6300d57a45818e6a52bf43aa890a"}}, "title": "Robust humoral and cellular immune responses and low risk for reinfection at least 8 months following asymptomatic to mild COVID-19.", "authors": [{"family": "Havervall", "given": "Sebastian", "initials": "S", "orcid": "0000-0003-1671-8183", "researcher": {"href": "https://publications.scilifelab.se/researcher/dbd194b3cef64f9f9341fd163a035235.json"}}, {"family": "Ng", "given": "Henry", "initials": "H", "orcid": "0000-0003-2873-9088", "researcher": {"href": "https://publications.scilifelab.se/researcher/5fcb12c664a64724b5cd42a1267a5bea.json"}}, {"family": "Jernbom Falk", "given": "August", "initials": "A", "orcid": "0000-0002-7773-1851", "researcher": {"href": "https://publications.scilifelab.se/researcher/fe6400bde68b46899515cef5bea05fca.json"}}, {"family": "Greilert-Norin", "given": "Nina", "initials": "N", "orcid": "0000-0003-1492-9745", "researcher": {"href": "https://publications.scilifelab.se/researcher/cd0c03be884e4ae8840d0e0d04c411dd.json"}}, {"family": "M\u00e5nberg", "given": "Anna", "initials": "A", "orcid": "0000-0002-0056-1313", "researcher": {"href": "https://publications.scilifelab.se/researcher/6d155273b5b54e61b773f263e4f2ce9b.json"}}, {"family": "Marking", "given": "Ulrika", "initials": "U"}, {"family": "Laur\u00e9n", "given": "Ida", "initials": "I"}, {"family": "Gabrielsson", "given": "Lena", "initials": "L"}, {"family": "Salomonsson", "given": "Ann-Christin", "initials": "AC"}, {"family": "Aguilera", "given": "Katherina", "initials": "K"}, {"family": "Kihlgren", "given": "Martha", "initials": "M"}, {"family": "M\u00e5nsson", "given": "Maja", "initials": "M"}, {"family": "Rosell", "given": "Axel", "initials": "A", "orcid": "0000-0001-6280-0562", "researcher": {"href": "https://publications.scilifelab.se/researcher/bcddaba7a96a406b994756ab71427baf.json"}}, {"family": "Hellstr\u00f6m", "given": "Cecilia", "initials": "C", "orcid": "0000-0003-0880-5375", "researcher": {"href": "https://publications.scilifelab.se/researcher/dbf3f75938f0442a9b1ae5c98565f44a.json"}}, {"family": "Andersson", "given": "Eni", "initials": "E"}, {"family": "Olofsson", "given": "Jennie", "initials": "J", "orcid": "0000-0002-8593-9089", "researcher": {"href": "https://publications.scilifelab.se/researcher/d2b59febdeec4df99bf3a0d5480df305.json"}}, {"family": "Skoglund", "given": "Lovisa", "initials": "L"}, {"family": "Yousef", "given": "Jamil", "initials": "J", "orcid": "0000-0001-5915-1258", "researcher": {"href": "https://publications.scilifelab.se/researcher/86be17c932614797a876bb55c7ce566e.json"}}, {"family": "Pin", "given": "Elisa", "initials": "E", "orcid": "0000-0002-2158-2674", "researcher": {"href": "https://publications.scilifelab.se/researcher/ccb4db02b9784587b62020716ab87247.json"}}, {"family": "Lord", "given": "Martin", "initials": "M", "orcid": "0000-0002-3238-3187", "researcher": {"href": "https://publications.scilifelab.se/researcher/3e14847c142f4c359f2d531601436897.json"}}, {"family": "\u00c5berg", "given": "Mikael", "initials": "M", "orcid": "0000-0002-7858-8233", "researcher": {"href": "https://publications.scilifelab.se/researcher/90fa86e9aeaa43ea9547e48b4f3f24e3.json"}}, {"family": "Hedhammar", "given": "My", "initials": "M"}, {"family": "Tegel", "given": "Hanna", "initials": "H"}, {"family": "D\u00f6nnes", "given": "Pierre", "initials": "P", "orcid": "0000-0002-4613-2952", "researcher": {"href": "https://publications.scilifelab.se/researcher/56d32d60f9b547be8096c448fc013246.json"}}, {"family": "Phillipson", "given": "Mia", "initials": "M", "orcid": "0000-0002-2387-0266", "researcher": {"href": "https://publications.scilifelab.se/researcher/1ebf9ffcab3e4a19add4c6dd51b727b1.json"}}, {"family": "Nilsson", "given": "Peter", "initials": "P", "orcid": "0000-0002-4657-8532", "researcher": {"href": "https://publications.scilifelab.se/researcher/799bcf1cf8cf451296f4535dd4ca9dc0.json"}}, {"family": "Klingstr\u00f6m", "given": "Jonas", "initials": "J", "orcid": "0000-0001-9076-1441", "researcher": {"href": "https://publications.scilifelab.se/researcher/95c1b345ae434fb383b7fe6a1d053c80.json"}}, {"family": "Mangsbo", "given": "Sara", "initials": "S", "orcid": "0000-0002-1355-2678", "researcher": {"href": "https://publications.scilifelab.se/researcher/c743bbcad6554f049c8fc5f64a6801bc.json"}}, {"family": "Hober", "given": "Sophia", "initials": "S", "orcid": "0000-0003-0605-8417", "researcher": {"href": "https://publications.scilifelab.se/researcher/f8dd8ee4264d4e4b912dacad3106f40a.json"}}, {"family": "Th\u00e5lin", "given": "Charlotte", "initials": "C", "orcid": "0000-0002-1345-6491", "researcher": {"href": "https://publications.scilifelab.se/researcher/130fb6ef6b774613a767e98f9f9b2eb4.json"}}], "type": "journal article", "published": "2022-01-00", "journal": {"title": "J. Intern. Med.", "issn": "1365-2796", "issn-l": "0954-6820", "volume": "291", "issue": "1", "pages": "72-80"}, "abstract": "Emerging data support detectable immune responses for months after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and vaccination, but it is not yet established to what degree and for how long protection against reinfection lasts.\n\nWe investigated SARS-CoV-2-specific humoral and cellular immune responses more than 8 months post-asymptomatic, mild and severe infection in a cohort of 1884 healthcare workers (HCW) and 51 hospitalized COVID-19 patients. Possible protection against SARS-CoV-2 reinfection was analyzed by a weekly 3-month polymerase chain reaction (PCR) screening of 252 HCW that had seroconverted 7 months prior to start of screening and 48 HCW that had remained seronegative at multiple time points.\n\nAll COVID-19 patients and 96% (355/370) of HCW who were anti-spike IgG positive at inclusion remained anti-spike IgG positive at the 8-month follow-up. Circulating SARS-CoV-2-specific memory T cell responses were detected in 88% (45/51) of COVID-19 patients and in 63% (233/370) of seropositive HCW. The cumulative incidence of PCR-confirmed SARS-CoV-2 infection was 1% (3/252) among anti-spike IgG positive HCW (0.13 cases per 100 weeks at risk) compared to 23% (11/48) among anti-spike IgG negative HCW (2.78 cases per 100 weeks at risk), resulting in a protective effect of 95.2% (95% CI 81.9%-99.1%).\n\nThe vast majority of anti-spike IgG positive individuals remain anti-spike IgG positive for at least 8 months regardless of initial COVID-19 disease severity. The presence of anti-spike IgG antibodies is associated with a substantially reduced risk of reinfection up to 9 months following asymptomatic to mild COVID-19.", "doi": "10.1111/joim.13387", "pmid": "34459525", "labels": {"Autoimmunity and Serology Profiling": "Collaborative", "Affinity Proteomics Uppsala": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC8661920"}], "notes": [], "created": "2021-08-31T10:38:04.811Z", "modified": "2022-12-02T10:46:29.165Z"}, {"entity": "publication", "iuid": "9d0f9b6ced5447dfab67df3380c65330", "links": {"self": {"href": "https://publications.scilifelab.se/publication/9d0f9b6ced5447dfab67df3380c65330.json"}, "display": {"href": "https://publications.scilifelab.se/publication/9d0f9b6ced5447dfab67df3380c65330"}}, "title": "Systematic evaluation of SARS-CoV-2 antigens enables a highly specific and sensitive multiplex serological COVID-19 assay.", "authors": [{"family": "Hober", "given": "Sophia", "initials": "S", "orcid": "0000-0003-0605-8417", "researcher": {"href": "https://publications.scilifelab.se/researcher/f8dd8ee4264d4e4b912dacad3106f40a.json"}}, {"family": "Hellstr\u00f6m", "given": "Cecilia", "initials": "C"}, {"family": "Olofsson", "given": "Jennie", "initials": "J", "orcid": "0000-0002-8593-9089", "researcher": {"href": "https://publications.scilifelab.se/researcher/d2b59febdeec4df99bf3a0d5480df305.json"}}, {"family": "Andersson", "given": "Eni", "initials": "E", "orcid": "0000-0002-5115-0637", "researcher": {"href": "https://publications.scilifelab.se/researcher/ef94cf857c3746088cd01cee49242f24.json"}}, {"family": "Bergstr\u00f6m", "given": "Sofia", "initials": "S", "orcid": "0000-0003-2910-4754", "researcher": {"href": "https://publications.scilifelab.se/researcher/648c9ed3483a4eb8a1d228cf7e59f6a7.json"}}, {"family": "Jernbom Falk", "given": "August", "initials": "A", "orcid": "0000-0002-7773-1851", "researcher": {"href": "https://publications.scilifelab.se/researcher/fe6400bde68b46899515cef5bea05fca.json"}}, {"family": "Bayati", "given": "Shaghayegh", "initials": "S"}, {"family": "Mravinacova", "given": "Sara", "initials": "S"}, {"family": "Sj\u00f6berg", "given": "Ronald", "initials": "R", "orcid": "0000-0003-1363-5796", "researcher": {"href": "https://publications.scilifelab.se/researcher/d08326da26da422ab445a26563843e79.json"}}, {"family": "Yousef", "given": "Jamil", "initials": "J", "orcid": "0000-0001-5915-1258", "researcher": {"href": "https://publications.scilifelab.se/researcher/86be17c932614797a876bb55c7ce566e.json"}}, {"family": "Skoglund", "given": "Lovisa", "initials": "L"}, {"family": "Kanje", "given": "Sara", "initials": "S"}, {"family": "Berling", "given": "Anna", "initials": "A"}, {"family": "Svensson", "given": "Anne-Sophie", "initials": "AS"}, {"family": "Jensen", "given": "Gabriella", "initials": "G"}, {"family": "Enstedt", "given": "Henric", "initials": "H"}, {"family": "Afshari", "given": "Delaram", "initials": "D"}, {"family": "Xu", "given": "Lan Lan", "initials": "LL"}, {"family": "Zwahlen", "given": "Martin", "initials": "M"}, {"family": "von Feilitzen", "given": "Kalle", "initials": "K"}, {"family": "Hanke", "given": "Leo", "initials": "L"}, {"family": "Murrell", "given": "Ben", "initials": "B"}, {"family": "McInerney", "given": "Gerald", "initials": "G"}, {"family": "Karlsson Hedestam", "given": "Gunilla B", "initials": "GB"}, {"family": "Lendel", "given": "Christofer", "initials": "C"}, {"family": "Roth", "given": "Robert G", "initials": "RG"}, {"family": "Skoog", "given": "Ingmar", "initials": "I"}, {"family": "Svenungsson", "given": "Elisabet", "initials": "E"}, {"family": "Olsson", "given": "Tomas", "initials": "T"}, {"family": "Fogdell-Hahn", "given": "Anna", "initials": "A"}, {"family": "Lindroth", "given": "Ylva", "initials": "Y"}, {"family": "Lundgren", "given": "Maria", "initials": "M"}, {"family": "Maleki", "given": "Kimia T", "initials": "KT"}, {"family": "Lagerqvist", "given": "Nina", "initials": "N"}, {"family": "Klingstr\u00f6m", "given": "Jonas", "initials": "J", "orcid": "0000-0001-9076-1441", "researcher": {"href": "https://publications.scilifelab.se/researcher/95c1b345ae434fb383b7fe6a1d053c80.json"}}, {"family": "Da Silva Rodrigues", "given": "Rui", "initials": "R"}, {"family": "Muschiol", "given": "Sandra", "initials": "S"}, {"family": "Bogdanovic", "given": "Gordana", "initials": "G"}, {"family": "Arroyo M\u00fchr", "given": "Laila Sara", "initials": "LS"}, {"family": "Eklund", "given": "Carina", "initials": "C"}, {"family": "Lagheden", "given": "Camilla", "initials": "C"}, {"family": "Dillner", "given": "Joakim", "initials": "J"}, {"family": "Sivertsson", "given": "\u00c5sa", "initials": "\u00c5"}, {"family": "Havervall", "given": "Sebastian", "initials": "S", "orcid": "0000-0003-1671-8183", "researcher": {"href": "https://publications.scilifelab.se/researcher/dbd194b3cef64f9f9341fd163a035235.json"}}, {"family": "Th\u00e5lin", "given": "Charlotte", "initials": "C", "orcid": "0000-0002-1345-6491", "researcher": {"href": "https://publications.scilifelab.se/researcher/130fb6ef6b774613a767e98f9f9b2eb4.json"}}, {"family": "Tegel", "given": "Hanna", "initials": "H", "orcid": "0000-0002-7067-9173", "researcher": {"href": "https://publications.scilifelab.se/researcher/d3d733dbd7b84a6b88f7f5fcff7165f6.json"}}, {"family": "Pin", "given": "Elisa", "initials": "E", "orcid": "0000-0002-2158-2674", "researcher": {"href": "https://publications.scilifelab.se/researcher/ccb4db02b9784587b62020716ab87247.json"}}, {"family": "M\u00e5nberg", "given": "Anna", "initials": "A", "orcid": "0000-0002-0056-1313", "researcher": {"href": "https://publications.scilifelab.se/researcher/6d155273b5b54e61b773f263e4f2ce9b.json"}}, {"family": "Hedhammar", "given": "My", "initials": "M", "orcid": "0000-0003-0140-419X", "researcher": {"href": "https://publications.scilifelab.se/researcher/061cceecaf0e4bed8efabca146e5b235.json"}}, {"family": "Nilsson", "given": "Peter", "initials": "P", "orcid": "0000-0002-4657-8532", "researcher": {"href": "https://publications.scilifelab.se/researcher/799bcf1cf8cf451296f4535dd4ca9dc0.json"}}], "type": "journal article", "published": "2021-07-19", "journal": {"title": "Clin Transl Immunology", "issn": "2050-0068", "volume": "10", "issue": "7", "pages": "e1312", "issn-l": null}, "abstract": "The COVID-19 pandemic poses an immense need for accurate, sensitive and high-throughput clinical tests, and serological assays are needed for both overarching epidemiological studies and evaluating vaccines. Here, we present the development and validation of a high-throughput multiplex bead-based serological assay.\n\nMore than 100 representations of SARS-CoV-2 proteins were included for initial evaluation, including antigens produced in bacterial and mammalian hosts as well as synthetic peptides. The five best-performing antigens, three representing the spike glycoprotein and two representing the nucleocapsid protein, were further evaluated for detection of IgG antibodies in samples from 331 COVID-19 patients and convalescents, and in 2090 negative controls sampled before 2020.\n\nThree antigens were finally selected, represented by a soluble trimeric form and the S1-domain of the spike glycoprotein as well as by the C-terminal domain of the nucleocapsid. The sensitivity for these three antigens individually was found to be 99.7%, 99.1% and 99.7%, and the specificity was found to be 98.1%, 98.7% and 95.7%. The best assay performance was although achieved when utilising two antigens in combination, enabling a sensitivity of up to 99.7% combined with a specificity of 100%. Requiring any two of the three antigens resulted in a sensitivity of 99.7% and a specificity of 99.4%.\n\nThese observations demonstrate that a serological test based on a combination of several SARS-CoV-2 antigens enables a highly specific and sensitive multiplex serological COVID-19 assay.", "doi": "10.1002/cti2.1312", "pmid": "34295471", "labels": {"Autoimmunity and Serology Profiling": "Technology development"}, "xrefs": [{"db": "pii", "key": "CTI21312"}, {"db": "pmc", "key": "PMC8288725"}], "notes": [], "created": "2021-07-25T21:30:22.465Z", "modified": "2021-11-10T12:23:19.192Z"}]}