Antibody responses to SARS-CoV-2 in patients with COVID-19
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Abstract
We report acute antibody responses to SARS-CoV-2 in 285 patients with COVID-19. Within 19 days after symptom onset, 100% of patients tested positive for antiviral immunoglobulin-G (IgG). Seroconversion for IgG and IgM occurred simultaneously or sequentially. Both IgG and IgM titers plateaued within 6 days after seroconversion. Serological testing may be helpful for the diagnosis of suspected patients with negative RT-PCR results and for the identification of asymptomatic infections.
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The vast majority of SARS-CoV-2 infected individuals seroconvert within 5-15 days post-symptom onset, with about 90% seroconversion by day 10.
“The vast majority of SARS-CoV-2 infected individuals seroconvert within 5–15 days PSO, with ∼90% seroconversion by day 10 PSO (Long et al., 2020; Rydyznski Moderbacher et al., 2020; Premkumar et al., 2020; Ripperger et al., 2020; Suthar et al., 2020).”
From Adaptive immunity to SARS-CoV-2 and COVID-19 (2021) · cites this paper as Long et al., 2020
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- Authors
- Long, Q.-X., Liu, B.-Z., Deng, H.-J., Wu, G.-C., Deng, K., Chen, Y.-K., Liao, P., Qiu, J.-F., Lin, Y., Cai, X.-F., Wang, D.-Q., Hu, Y., Ren, J.-H., Tang, N., Xu, Y.-Y., Yu, L.-H., Mo, Z., Gong, F., Zhang, X.-L., Tian, W.-G., Hu, L., Zhang, X.-X., Xiang, J.-L., Du, H.-X., Liu, H.-W., Lang, C.-H., Luo, X.-H., Wu, S.-B., Cui, X.-P., Zhou, Z., Zhu, M.-M., Wang, J., Xue, C.-J., Li, X.-F., Wang, L., Li, Z.-J., Wang, K., Niu, C.-C., Yang, Q.-J., Tang, X.-J., Zhang, Y., Liu, X.-M., Li, J.-J., Zhang, D.-C., Zhang, F., Liu, P., Yuan, J., Li, Q., Hu, J.-L., Chen, J., & Huang, A.-L.
- Affiliations
- The Affiliated Yongchuan Hospital of Chongqing Medical University (CN)
- Chongqing University (CN)
- Chongqing Medical University (CN)
- Chongqing Public Health Medical Center (CN)
- Second Affiliated Hospital of Chongqing Medical University (CN)
- Yueqing People's Hospital (CN)
- Corresponding author
- Li, Zhi-Jie
- Chen, Juan
- ORCID
- Venue
- Nature Medicine
- Published
- 2020-04-29
- Volume
- 26
- Issue
- 6
- Pages
- 845-848
- ISSN
- 1078-8956 (ISSN-L)
- 1546-170X
- OpenAlex
- W3021590963
- Cited by
- 2,876
- References
- 9
- Citations by year
- 2026: 29 · 2025: 71 · 2024: 126 · 2023: 230 · 2022: 467 · 2021: 1026 · 2020: 923 · 2019: 1
- FWCI
- 86.74
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Nature Medicine (publishedVersion)
- medRxiv (acceptedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (81672012)
- Topics
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 detection and testing
- Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
- Keywords
- SARS-CoV-2, COVID-19 pandemic, antibody response, seroconversion, IgG, IgM, serological diagnosis, asymptomatic infection, hospitalized patients
- MeSH terms
- Betacoronavirus, COVID-19, SARS-CoV-2, Adult, Aged, Antibodies, Viral, Antibody Formation, Antiviral Agents, Female, Humans, Immunoglobulin G, Immunoglobulin M, Male, Middle Aged, Pneumonia, Viral, Coronavirus Infections, Pandemics
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