Analysis of monitoring results of novel coronavirus IgM and IgG antibody levels in apheresis platelets donors and impact on blood safety
10.13303/j.cjbt.issn.1004-549x.2023.09.003
- VernacularTitle:单采血小板献血者新型冠状病毒IgM和IgG抗体水平监测结果分析及对血液安全的影响
- Author:
Hui ZHANG
1
;
Xinwei WANG
1
;
Ruru HE
1
;
Zhenxing WEI
1
;
Jinheng LIANG
1
;
Dong PANG
1
;
Limin CHEN
2
Author Information
1. Nanning Blood Center, Nanning 530007, China
2. Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College
- Publication Type:Journal Article
- Keywords:
apheresis platelets;
SARS-CoV-2;
antibody IgM;
antibody IgG;
blood safety
- From:
Chinese Journal of Blood Transfusion
2023;36(9):770-774
- CountryChina
- Language:Chinese
-
Abstract:
【Objective】 To monitor the positive rates of IgM and IgG antibodies and the changes in S/CO values over time in voluntary blood donors infected with SARS-CoV-2 after recovery, in order to provide theoretical basis and data support for ensuring clinical blood safety. 【Methods】 A total of 54 platelet donors who met the inclusion criteria were selected for this study, and 359 blood samples (plasma) from T1 to T7 (at 7 time points, spanning 14 to 15 weeks) were continuously monitored for SARS-CoV-2 IgM and IgG antibodies using fully automated chemi-luminescence method. 【Results】 Among 359 blood samples (plasma) from 54 donors, 349 were with valid test results.Eleven donors were tested positive for IgM, with a positive rate of 20.37%, and IgM antibody S/CO value gradually increased during T1-T3, but gradually decreased during T4-T7. Fifty-four donors were tested positive for IgG, with the positive rate of 100%, and the S/CO value of IgG antibody gradually decreased over time. During the period of T1 -T7, there was no significant difference in SARS-CoV-2 IgG antibody S/CO value between gender (male/female) or age group (18-39 years old /40-60 years old). 【Conclusion】 The positive rate of SARS-CoV-2 IgG antibody in platelet donors after recovery from SARS-CoV-2 infection was 100% during 2-14 weeks, and the IgG S/CO value gradually decreases over time. The long-term dynamic changes of SARS-CoV-2 serologically specific IgG and IgM antibodies in blood donors are worthy of further study.
