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Cholette F, Fabia R, Harris A, Ellis H, Cachero K, Schroeder L, Mesa C, Lacap P, Arnold C, Galipeau Y, Langlois MA, Colwill K, Gingras AC, McGeer A, Giles E, Day J, Osiowy C, Durocher Y, Hankins C, Mazer B, Drebot M, Kim J. Comparative performance data for multiplex SARS-CoV-2 serological assays from a large panel of dried blood spot specimens. Heliyon 2022; 8:e10270. [PMID: 36060461 PMCID: PMC9420314 DOI: 10.1016/j.heliyon.2022.e10270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/06/2022] [Accepted: 08/09/2022] [Indexed: 11/02/2022] Open
Abstract
The extent of the COVID-19 pandemic will be better understood through serosurveys and SARS-CoV-2 antibody testing. Dried blood spot (DBS) samples will play a central role in large scale serosurveillance by simplifying biological specimen collection and transportation, especially in Canada. Direct comparative performance data on multiplex SARS-CoV-2 assays resulting from identical DBS samples are currently lacking. In our study, we aimed to provide performance data for the BioPlex 2200 SARS-CoV-2 IgG (Bio-Rad), V-PLEX SARS-CoV-2 Panel 2 IgG (MSD), and Elecsys Anti-SARS-CoV-2 (Roche) commercial assays, as well as for two highly scalable in-house assays (University of Ottawa and Mount Sinai Hospital protocols) to assess their suitability for DBS-based SARS-CoV-2 DBS serosurveillance. These assays were evaluated against identical panels of DBS samples collected from convalescent COVID-19 patients (n = 97) and individuals undergoing routine sexually transmitted and bloodborne infection (STBBI) testing prior to the COVID-19 pandemic (n = 90). Our findings suggest that several assays are suitable for serosurveillance (sensitivity >97% and specificity >98%). In contrast to other reports, we did not observe an improvement in performance using multiple antigen consensus-based rules to establish overall seropositivity. This may be due to our DBS panel which consisted of samples collected from convalescent COVID-19 patients with significant anti-spike, -receptor binding domain (RBD), and -nucleocapsid antibody titers. This study demonstrates that biological specimens collected as DBS coupled with one of several readily available assays are useful for large-scale COVID-19 serosurveillance.
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Affiliation(s)
- François Cholette
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
| | - Rissa Fabia
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Angela Harris
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Hannah Ellis
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Karla Cachero
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Lukas Schroeder
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Christine Mesa
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Philip Lacap
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Corey Arnold
- Department of Biochemistry, Microbiology & Immunology, Faculty of Medicine, University of Ottawa, Canada
| | - Yannick Galipeau
- Department of Biochemistry, Microbiology & Immunology, Faculty of Medicine, University of Ottawa, Canada
| | - Marc-André Langlois
- Department of Biochemistry, Microbiology & Immunology, Faculty of Medicine, University of Ottawa, Canada
- The Centre for Infection, Immunity, and Inflammation (CI3), University of Ottawa, Ottawa, Canada
| | - Karen Colwill
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Canada
| | - Anne-Claude Gingras
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Allison McGeer
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Canada
- Department of Microbiology at Mount Sinai Hospital, Sinai Health, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Canada
| | - Elizabeth Giles
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Jacqueline Day
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Carla Osiowy
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - Yves Durocher
- Mammalian Cell Expression, Human Health Therapeutics Research Centre, National Research Council Canada, Montréal, Canada
| | - Catherine Hankins
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, Canada
| | - Bruce Mazer
- Department of Pediatrics, McGill University, Montréal, Canada
| | - Michael Drebot
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - John Kim
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
| | - the COVID-19 Immunity Task Force (CITF) working group1
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
- Department of Biochemistry, Microbiology & Immunology, Faculty of Medicine, University of Ottawa, Canada
- The Centre for Infection, Immunity, and Inflammation (CI3), University of Ottawa, Ottawa, Canada
- Lunenfeld-Tanenbaum Research Institute at Mount Sinai Hospital, Sinai Health, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
- Department of Microbiology at Mount Sinai Hospital, Sinai Health, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Canada
- Mammalian Cell Expression, Human Health Therapeutics Research Centre, National Research Council Canada, Montréal, Canada
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montréal, Canada
- Department of Pediatrics, McGill University, Montréal, Canada
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Liu KT, Han YJ, Wu GH, Huang KYA, Huang PN. Overview of Neutralization Assays and International Standard for Detecting SARS-CoV-2 Neutralizing Antibody. Viruses 2022; 14:v14071560. [PMID: 35891540 PMCID: PMC9322699 DOI: 10.3390/v14071560] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 11/25/2022] Open
Abstract
We aimed to review the existing literature on the different types of neutralization assays and international standards for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We comprehensively summarized the serological assays for detecting neutralizing antibodies against SARS-CoV-2 and demonstrated the importance of an international standard for calibrating the measurement of neutralizing antibodies. Following the coronavirus disease outbreak in December 2019, there was an urgent demand to detect neutralizing antibodies in patients or vaccinated people to monitor disease outcomes and determine vaccine efficacy. Therefore, many approaches were developed to detect neutralizing antibodies against SARS-CoV-2, such as microneutralization assay, SARS-CoV-2 pseudotype virus assay, enzyme-linked immunosorbent assay (ELISA), and rapid lateral flow assay. Given the many types of serological assays for quantifying the neutralizing antibody titer, the comparison of different assay results is a challenge. In 2020, the World Health Organization proposed the first international standard as a common unit to define neutralizing antibody titer and antibody responses against SARS-CoV-2. These standards are useful for comparing the results of different assays and laboratories.
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Affiliation(s)
- Kuan-Ting Liu
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-T.L.); (Y.-J.H.); (G.-H.W.); (K.-Y.A.H.)
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yi-Ju Han
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-T.L.); (Y.-J.H.); (G.-H.W.); (K.-Y.A.H.)
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Guan-Hong Wu
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-T.L.); (Y.-J.H.); (G.-H.W.); (K.-Y.A.H.)
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Kuan-Ying A. Huang
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-T.L.); (Y.-J.H.); (G.-H.W.); (K.-Y.A.H.)
- Division of Infectious Diseases, Department of Pediatrics, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Peng-Nien Huang
- Research Center for Emerging Viral Infections, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan; (K.-T.L.); (Y.-J.H.); (G.-H.W.); (K.-Y.A.H.)
- Division of Infectious Diseases, Department of Pediatrics, Linkou Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
- International Master Degree Program for Molecular Medicine in Emerging Viral Infections, Chang Gung University, Taoyuan 33302, Taiwan
- Correspondence:
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Deshpande K, Pt U, Kaduskar O, Vijay N, Rakhe A, Vidhate S, Khutwad K, Deshpande GR, Tilekar B, Saka S, Gadekar K, Patil R, Yadav P, Potdar V, Gurav Y, Gupta P, Kaur H, Narayan J, Sapkal G, Abraham P. Performance assessment of seven SARS-CoV-2 IgG enzyme-linked immunosorbent assays. J Med Virol 2021; 93:6696-6702. [PMID: 34331713 PMCID: PMC8426713 DOI: 10.1002/jmv.27251] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/24/2021] [Accepted: 07/29/2021] [Indexed: 12/14/2022]
Abstract
The pandemic of COVID-19 has caused enormous fatalities worldwide. Serological assays are important for detection of asymptomatic or mild cases of COVID-19, and sero-prevalence and vaccine efficacy studies. Here, we evaluated and compared the performance of seven commercially available enzyme-linked immunosorbent assay (ELISA)s for detection of anti-severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) immunoglobulin G (IgG). The ELISAs were evaluated with a characterized panel of 100 serum samples from qRT-PCR confirmed COVID-19 patients, collected 14 days post onset disease, 100 SARS-CoV-2 negative samples and compared the results with that of neutralization assay. Results were analysed by creating the receiver operating characteristic curve of all the assays in reference to the neutralization assay. All kits, were found to be suitable for detection of IgG against SARS-CoV-2 with high accuracy. The DiaPro COVID-19 IgG ELISA showed the highest sensitivity (98%) among the kits. The assays demonstrated high sensitivity and specificity in detecting the IgG antibodies against SARS-CoV-2. However, the presence of IgG antibodies does not always correspond to neutralizing antibodies. Due to their good accuracy indices, these assays can also aid in tracing mild infections, in cohort studies and in pre-vaccine evaluations.
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Affiliation(s)
- Ketki Deshpande
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Ullas Pt
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Ojas Kaduskar
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Neetu Vijay
- Virology Unit, Indian Council of Medical Research, New Delhi, India
| | - Aparna Rakhe
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Shankar Vidhate
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Kirtee Khutwad
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | | | - Bipin Tilekar
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Sanskruti Saka
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | | | - Roshni Patil
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Pragya Yadav
- Maximum Containment Laboratory, ICMR-National Institute of Virology, Pune, India
| | - Varsha Potdar
- Human Influenza Group, ICMR-National Institute of Virology, Pune, India
| | - Yogesh Gurav
- Epidemiology Group, ICMR-National Institute of Virology, Pune, India
| | - Priyanka Gupta
- Virology Unit, Indian Council of Medical Research, New Delhi, India
| | - Harmanmeet Kaur
- Virology Unit, Indian Council of Medical Research, New Delhi, India
| | - Jitendra Narayan
- Virology Unit, Indian Council of Medical Research, New Delhi, India
| | - Gajanan Sapkal
- ICMR-National Institute of Virology, Pune, Maharashtra, India
| | - Priya Abraham
- ICMR-National Institute of Virology, Pune, Maharashtra, India
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SARS-CoV-2 seroepidemiological study in healthcare workers and discordant results using seven different diagnostic methods. Infection 2021; 50:251-256. [PMID: 34224078 PMCID: PMC8256773 DOI: 10.1007/s15010-021-01653-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/25/2021] [Indexed: 12/14/2022]
Abstract
The aim of the study was to access the SARS-CoV-2 antibody seroprevalence in healthcare workers (HCWs) of a tertiary pediatric hospital after the first wave of the pandemic and to compare the results among seven commercially available antibody detection assays, including chemiluminescence (CMIA), electroluminescence (ECLIA), Εnzyme-Linked Immunosorbent Assay (ELISA), and rapid immunochromatography (RIC). SARS-CoV-2 antibody detection was performed in serum samples of 1216 HCWs, using a reference CMIA assay and 8/1216 (0.66%) were detected positive. Positive serum samples were further tested with other assays; however, only one sample was positive by all tests. The rest 7 cases were negative with ECLIA and ELISA and gave discordant results with RIC test. Six months later, new serum samples of seropositive HCWs were analyzed with the same 7 tests, with inconsistent results again. Identification of reliable SARS-CoV-2 antibody tests is important to determine the actual number of past infections, the duration of antibodies, and guide public health decisions.
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Brinc D, Biondi MJ, Li D, Sun H, Capraru C, Smookler D, Zahoor MA, Casey J, Kulasingam V, Feld JJ. Evaluation of Dried Blood Spot Testing for SARS-CoV-2 Serology Using a Quantitative Commercial Assay. Viruses 2021; 13:962. [PMID: 34067361 PMCID: PMC8224688 DOI: 10.3390/v13060962] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/10/2021] [Accepted: 05/19/2021] [Indexed: 12/22/2022] Open
Abstract
Dried blood spots (DBS) are commonly used for serologic testing for viruses and provide an alternative collection method when phlebotomy and/or conventional laboratory testing are not readily available. DBS collection could be used to facilitate widespread testing for SARS-CoV-2 antibodies to document past infection, vaccination, and potentially immunity. We investigated the characteristics of Roche's Anti-SARS-CoV-2 (S) assay, a quantitative commercial assay for antibodies against the spike glycoprotein. Antibody levels were reduced relative to plasma following elution from DBS. Quantitative results from DBS samples were highly correlated with values from plasma (r2 = 0.98), allowing for extrapolation using DBS results to accurately estimate plasma antibody levels. High concordance between plasma and fingerpick DBS was observed in PCR-confirmed COVID-19 patients tested 90 days or more after the diagnosis (45/46 matched; 1/46 mismatched plasma vs. DBS). The assessment of antibody responses to SARS-CoV-2 using DBS may be feasible using a quantitative anti-S assay, although false negatives may rarely occur in those with very low antibody levels.
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Affiliation(s)
- Davor Brinc
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada; (D.B.); (V.K.)
- Department of Clinical Biochemistry, University Health Network, Toronto, ON M5G 2C4, Canada;
| | - Mia J. Biondi
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
| | - Daniel Li
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada;
| | - Heng Sun
- Department of Clinical Biochemistry, University Health Network, Toronto, ON M5G 2C4, Canada;
| | - Camelia Capraru
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
| | - David Smookler
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
| | - Muhammad Atif Zahoor
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
| | - Julia Casey
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
| | - Vathany Kulasingam
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada; (D.B.); (V.K.)
- Department of Clinical Biochemistry, University Health Network, Toronto, ON M5G 2C4, Canada;
| | - Jordan J. Feld
- Viral Hepatitis Care Network (VIRCAN) Study Group, Toronto Centre for Liver Disease, Toronto, ON M5G 2C, Canada; (M.J.B.); (C.C.); (D.S.); (M.A.Z.); (J.C.)
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada;
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Eberhardt KA, Dewald F, Heger E, Gieselmann L, Vanshylla K, Wirtz M, Kleipass F, Johannis W, Schommers P, Gruell H, Brensing KA, Müller RU, Augustin M, Lehmann C, Koch M, Klein F, Di Cristanziano V. Evaluation of a New Spike (S)-Protein-Based Commercial Immunoassay for the Detection of Anti-SARS-CoV-2 IgG. Microorganisms 2021; 9:733. [PMID: 33807490 PMCID: PMC8067155 DOI: 10.3390/microorganisms9040733] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 12/26/2022] Open
Abstract
Background: The investigation of the antibody response to SARS-CoV-2 represents a key aspect in facing the COVID-19 pandemic. In the present study, we compared the new Immundiagnostik IDK® anti-SARS-CoV-2 S1 IgG assay with four widely-used commercial serological assays for the detection of antibodies targeting S (spike) and NC (nucleocapsid) proteins. Methods: Serum samples were taken from an unbiased group of convalescent patients and from a negative control group. Sample were simultaneously analyzed by the new Immundiagnostik IDK® anti-SARS-CoV-2 S1 IgG assay, by the DiaSorin LIAISON® SARS-CoV-2 S1/S2 IgG assay, and by the Euroimmun anti-SARS-CoV-2 S1 IgG ELISA. Antibodies binding NC were detected by the Abbott SARS-CoV-2 IgG assay and by the pan-immunoglobulin immunoassay Roche Elecsys® anti-SARS-CoV-2. Moreover, we investigated samples of a group of COVID-19 convalescent subjects that were primarily tested S1 IgG non-reactive. Samples were also tested by live virus and pseudovirus neutralization tests. Results: Overall, the IDK® anti-SARS-CoV-2 S1 IgG assay showed the highest sensitivity among the evaluated spike (S) protein-based assays. Additionally, the Immundiagnostik assay correlated well with serum-neutralizing activity. Conclusions: The novel IDK® anti-SARS-CoV-2 S1 IgG assay showed high sensitivity and specificity, representing a valid option for use in the routine diagnostic.
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Affiliation(s)
- Kirsten Alexandra Eberhardt
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine & I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany;
- Institute for Transfusion Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Felix Dewald
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
| | - Eva Heger
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
| | - Lutz Gieselmann
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
| | - Kanika Vanshylla
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
| | - Maike Wirtz
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
| | - Franziska Kleipass
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
| | - Wibke Johannis
- Institute for Clinical Chemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
| | - Philipp Schommers
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
| | - Henning Gruell
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
| | | | - Roman-Ulrich Müller
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
- Department II of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, CECAD, University of Cologne, 50931 Cologne, Germany
| | - Max Augustin
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
| | - Clara Lehmann
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
- Department I of Internal Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany;
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
| | - Manuel Koch
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
- Institute for Experimental Dentistry and Oral Musculoskeletal Biology, and Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50931 Cologne, Germany
| | - Florian Klein
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
- German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, 50931 Cologne, Germany
| | - Veronica Di Cristanziano
- Institute of Virology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50935 Cologne, Germany; (F.D.); (E.H.); (L.G.); (K.V.); (M.W.); (F.K.); (P.S.); (H.G.); (F.K.)
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, 50931 Cologne, Germany; (R.-U.M.); (C.L.); (M.K.)
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