COVID-19 confirmed patients with negative antibodies results

BMC Infectious Diseases

Qilin Li¹  Pengcheng Cai¹  Jian Wang¹  Lin Wang¹  Chong Chen²  Zheng Wang³ 

[1] Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology;Department of Radiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology;Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology;

关键词: Case report;    COVID-19;    IgM;    IgG;    Negative antibodies results;   

DOI  :  10.1186/s12879-020-05419-3

来源: DOAJ

【 摘 要 】

Abstract Background A new coronavirus disease 2019 (COVID-19) has escalated to a pandemic since its first outbreak in Wuhan, China. A small proportion of patients may have difficulty in generating IgM or IgG antibodies against SARS-CoV-2, and little attention has been paid to them. Case presentations We present two cases of confirmed COVID-19 patients and characterize their initial symptoms, chest CT results, medication, and laboratory test results in detail (including RT-PCR, IgM/ IgG, cytokine and blood cell counts). Conclusion Both of patients with confirmed COVID-19 pneumonia failed to produce either IgM or IgG even 40 to 50 days after their symptoms onset. This work provides evidence demonstrating that at least a small proportion of patients may have difficulty in rapidly gaining immunity against SARS-CoV-2.

【 授权许可】

Unknown