在完全接种疫苗的血液病患者中,对SARS-CoV-2病毒及其Omicron BA.1变异的有效中和抗体反应
Danilo De Novellis1,2, Veronica Folliero1,3, Valentina Giudice1,2
1Department of Medicine, Surgery, and Dentistry, University of Salerno, Baronissi, Italy.
Clinical and experimental medicine
|October 29, 2023
概括
接种SARS-CoV-2疫苗的血液病患者对野生型和Omicron BA.1变种表现出良好的中和抗体反应. 然而,那些用抗CD20抗体治疗的B细胞疾病患者的反应较低,需要继续采取保护措施.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 血液学 血液学 血液学
背景情况:
- 血液性恶性瘤损害免疫功能,增加严重的COVID-19风险.
- 对SARS-CoV-2的中和抗体对保护至关重要.
- 接种疫苗是关键,但免疫功能低下患者的抗体反应需要评估.
研究的目的:
- 评估血液病患者对SARS-CoV-2 (野生型和Omicron BA.1) 的血清阳性和中和抗体水平.
- 为了确定潜在降低抗体反应的患者子组.
主要方法:
- 对106名血液病患者的回顾性研究,大多数是三次接种疫苗的.
- 血清样本采集时间为2022年5月至6月.
- 对抗野生型和Omicron BA.1病毒的中和抗体标位≥ 1:10进行测量.
主要成果:
- 在71% (野生型) 和82% (Omicron BA.1) 的患者中观察到足够的中和抗体反应.
- 患有B细胞淋巴增殖障碍或抗CD20治疗的患者的Omicron BA.1血清阳性显著降低 (73%对91%,P=0.02).
结论:
- 在大多数血液病患者中,完整的SARS-CoV-2疫苗接种提供了足够的中和抗体保护,防止野生型和Omicron BA.1.
- 血液病患者,特别是那些在抗CD20治疗中患有B细胞疾病的患者,可能需要继续采取保护措施,因为抗体产生可能减少.
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