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Hong E, Nwabuo CC, King A, Bocsi GT, Ashwood ER, Harry BL. Longitudinal Qualitative and Quantitative Evaluation of SARS-CoV-2 Antibodies in Immunized Health Care Workers. Arch Pathol Lab Med 2024; 148:e36-e39. [PMID: 37596892 DOI: 10.5858/arpa.2023-0014-oa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/17/2023] [Indexed: 08/21/2023]
Abstract
CONTEXT.— Many studies have depended on qualitative antibody assays to investigate questions related to COVID-19 infection, vaccination, and treatment. OBJECTIVE.— To evaluate immunoglobulin G (IgG) levels in vaccinated individuals over time and characterize limitations of qualitative and quantitative antibody assays. DESIGN.— Longitudinal serum samples (n = 339) were collected from 72 health care workers vaccinated against COVID-19. SARS-CoV-2 IgG levels before, during, and after vaccination were measured by using a qualitative anti-spike protein IgG assay and a quantitative anti-S1 IgG assay. Assay results were compared to understand antibody dynamics related to vaccination. RESULTS.— Qualitative testing demonstrated 100% seroconversion after the first vaccine dose, peak IgG levels after the second vaccine dose, and a progressive 50% decline during the next 8 months. Quantitative testing demonstrated that IgG levels during and after vaccination were above the analytical measurement range. CONCLUSIONS.— Qualitative testing demonstrates expected changes in SARS-CoV-2 IgG levels related to sequential vaccine doses and time since antigen exposure. However, proportional changes in the associated numerical signals are very likely inaccurate. Adoption of standardized quantitative SARS-CoV-2 antibody testing with a broad analytical measurement range is essential to determine a correlate of protection from COVID-19 that can be scaled for widespread use.
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Affiliation(s)
- Ellie Hong
- From the Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora (Hong, Nwabuo, Bocsi, Ashwood, Harry)
| | - Chike C Nwabuo
- From the Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora (Hong, Nwabuo, Bocsi, Ashwood, Harry)
| | - Angelina King
- Clinical Laboratory Services, UCHealth, Aurora, Colorado (King)
| | - Gregary T Bocsi
- From the Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora (Hong, Nwabuo, Bocsi, Ashwood, Harry)
| | - Edward R Ashwood
- From the Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora (Hong, Nwabuo, Bocsi, Ashwood, Harry)
| | - Brian L Harry
- From the Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora (Hong, Nwabuo, Bocsi, Ashwood, Harry)
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Senefeld JW, Gorman EK, Johnson PW, Moir ME, Klassen SA, Carter RE, Paneth NS, Sullivan DJ, Morkeberg OH, Wright RS, Fairweather D, Bruno KA, Shoham S, Bloch EM, Focosi D, Henderson JP, Juskewitch JE, Pirofski LA, Grossman BJ, Tobian AA, Franchini M, Ganesh R, Hurt RT, Kay NE, Parikh SA, Baker SE, Buchholtz ZA, Buras MR, Clayburn AJ, Dennis JJ, Diaz Soto JC, Herasevich V, Klompas AM, Kunze KL, Larson KF, Mills JR, Regimbal RJ, Ripoll JG, Sexton MA, Shepherd JR, Stubbs JR, Theel ES, van Buskirk CM, van Helmond N, Vogt MN, Whelan ER, Wiggins CC, Winters JL, Casadevall A, Joyner MJ. Rates Among Hospitalized Patients With COVID-19 Treated With Convalescent Plasma: A Systematic Review and Meta-Analysis. Mayo Clin Proc Innov Qual Outcomes 2023; 7:499-513. [PMID: 37859995 PMCID: PMC10582279 DOI: 10.1016/j.mayocpiqo.2023.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Abstract
Objective To examine the association of COVID-19 convalescent plasma transfusion with mortality and the differences between subgroups in hospitalized patients with COVID-19. Patients and Methods On October 26, 2022, a systematic search was performed for clinical studies of COVID-19 convalescent plasma in the literature from January 1, 2020, to October 26, 2022. Randomized clinical trials and matched cohort studies investigating COVID-19 convalescent plasma transfusion compared with standard of care treatment or placebo among hospitalized patients with confirmed COVID-19 were included. The electronic search yielded 3841 unique records, of which 744 were considered for full-text screening. The selection process was performed independently by a panel of 5 reviewers. The study followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Data were extracted by 5 independent reviewers in duplicate and pooled using an inverse-variance random effects model. The prespecified end point was all-cause mortality during hospitalization. Results Thirty-nine randomized clinical trials enrolling 21,529 participants and 70 matched cohort studies enrolling 50,160 participants were included in the systematic review. Separate meta-analyses reported that transfusion of COVID-19 convalescent plasma was associated with a decrease in mortality compared with the control cohort for both randomized clinical trials (odds ratio [OR], 0.87; 95% CI, 0.76-1.00) and matched cohort studies (OR, 0.76; 95% CI, 0.66-0.88). The meta-analysis of subgroups revealed 2 important findings. First, treatment with convalescent plasma containing high antibody levels was associated with a decrease in mortality compared with convalescent plasma containing low antibody levels (OR, 0.85; 95% CI, 0.73 to 0.99). Second, earlier treatment with COVID-19 convalescent plasma was associated with a decrease in mortality compared with the later treatment cohort (OR, 0.63; 95% CI, 0.48 to 0.82). Conclusion During COVID-19 convalescent plasma use was associated with a 13% reduced risk of mortality, implying a mortality benefit for hospitalized patients with COVID-19, particularly those treated with convalescent plasma containing high antibody levels treated earlier in the disease course.
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Affiliation(s)
- Jonathon W. Senefeld
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
- Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Urbana, IL
| | - Ellen K. Gorman
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Patrick W. Johnson
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL
| | - M. Erin Moir
- Department of Kinesiology, University of Wisconsin-Madison, Madison
| | - Stephen A. Klassen
- Department of Kinesiology, Brock University, St. Catharines, Ontario, Canada
| | - Rickey E. Carter
- Department of Quantitative Health Sciences, Mayo Clinic, Jacksonville, FL
| | - Nigel S. Paneth
- Department of Epidemiology and Biostatistics and Department of Pediatrics and Human Development, Michigan State University, East Lansing
| | - David J. Sullivan
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, ML
| | - Olaf H. Morkeberg
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - R. Scott Wright
- Human Research Protection Program, Mayo Clinic, Rochester, MN
| | | | - Katelyn A. Bruno
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL
- Division of Cardiovascular Medicine, University of Florida, Gainesville
| | - Shmuel Shoham
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, MD
| | - Evan M. Bloch
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, ML
| | - Daniele Focosi
- North-Western Tuscany Blood Bank, Pisa University Hospital, Italy
| | - Jeffrey P. Henderson
- Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine in St. Louis, MO
- Department of Molecular Microbiology, Washington University School of Medicine in St. Louis, MO
| | | | - Liise-Anne Pirofski
- Division of Infectious Diseases, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY
| | - Brenda J. Grossman
- Department of Pathology and Immunology, Washington University School of Medicine in St. Louis, MO
| | - Aaron A.R. Tobian
- Department of Pathology Johns Hopkins University School of Medicine, Baltimore, ML
| | - Massimo Franchini
- Division of Transfusion Medicine, Carlo Poma Hospital, Mantua, Italy
| | - Ravindra Ganesh
- Department of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Ryan T. Hurt
- Department of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Neil E. Kay
- Division of Hematology, Mayo Clinic, Rochester, MN
- Department of Immunology, Mayo Clinic, Rochester, MN
| | | | - Sarah E. Baker
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Zachary A. Buchholtz
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Matthew R. Buras
- Department of Quantitative Health Sciences, Mayo Clinic, Scottsdale, AZ
| | - Andrew J. Clayburn
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Joshua J. Dennis
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Juan C. Diaz Soto
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Vitaly Herasevich
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Allan M. Klompas
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Katie L. Kunze
- Department of Quantitative Health Sciences, Mayo Clinic, Scottsdale, AZ
| | | | - John R. Mills
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Riley J. Regimbal
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Juan G. Ripoll
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Matthew A. Sexton
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - John R.A. Shepherd
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - James R. Stubbs
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Elitza S. Theel
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | | | - Noud van Helmond
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Matthew N.P. Vogt
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Emily R. Whelan
- Department of Cardiovascular Medicine, Mayo Clinic, Jacksonville, FL
| | - Chad C. Wiggins
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Jeffrey L. Winters
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Arturo Casadevall
- Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, ML
| | - Michael J. Joyner
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
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Basavaraju SV, Free RJ, Chavez Ortiz JL, Stewart P, Berger J, Sapiano MRP. Impact of the COVID-19 pandemic on blood donation and transfusions in the United States in 2020. Transfusion 2023; 63 Suppl 4:S1-S7. [PMID: 37052192 PMCID: PMC10543386 DOI: 10.1111/trf.17359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/19/2023] [Accepted: 01/20/2023] [Indexed: 04/14/2023]
Abstract
INTRODUCTION Reports have suggested the COVID-19 pandemic resulted in blood donation shortages and adverse impacts on the blood supply. Using data from the National Blood Collection and Utilization Survey (NBCUS), we quantified the pandemic's impact on red blood cell (RBC) and apheresis platelet collections and transfusions in the United States during year 2020. METHODS The 2021 NBCUS survey instrument was modified to include certain blood collection and utilization variables for 2020. The survey was distributed to all US blood collection centers, all US hospitals performing ≥1000 surgeries annually, and a 40% random sample of hospitals performing 100-999 surgeries annually. Weighting and imputation were used to generate national estimates for whole blood and apheresis platelet donation; RBC and platelet transfusion; and convalescent plasma distribution. RESULTS Whole blood collections were stable from 2019 (9,790,000 units; 95% CI: 9,320,000-10,261,000) to 2020 (9,738,000 units; 95% CI: 9,365,000-10,110,000). RBC transfusions decreased by 6.0%, from 10,852,000 units (95% CI: 10,444,000-11,259,000) in 2019 to 10,202,000 units (95% CI: 9,811,000-10,593,000) in 2020. Declines were steepest during March-April 2020, with transfusions subsequently rebounding. Apheresis platelet collections increased from 2,359,000 units (95% CI: 2,240,000-2,477,000) in 2019 to 2,408,000 units (95% CI: 2,288,000-2,528,000) in 2020. Apheresis platelet transfusions increased from 1,996,000 units (95% CI: 1,846,000-2,147,000) in 2019 to 2,057,000 units (95% CI: 1,902,000-2,211,000) in 2020. CONCLUSION The COVID-19 pandemic resulted in reduced blood donations and transfusions in some months during 2020 but only a minimal annualized decline compared with 2019.
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Affiliation(s)
- Sridhar V. Basavaraju
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Rebecca J. Free
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Joel L. Chavez Ortiz
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Oakridge Institute for Science and Education, Atlanta, Georgia, USA
| | - Phylicia Stewart
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Chenega Corporation, Atlanta, Georgia, USA
| | - James Berger
- Office of Infectious Disease and HIV/AIDS Policy, Office of the Assistant Secretary of Health, Department of Health and Human Services, Washington, DC, USA
| | - Mathew R. P. Sapiano
- Division of Healthcare Quality Promotion, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
- Lantana Consulting Group, East Thetford, Vermont, USA
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