Neutralizing Antibodies Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Variants Induced by Natural Infection or Vaccination: A Systematic Review and Pooled Analysis
Open accessPublished version of a preprint
Abstract
Recently emerged severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants may pose a threat to immunity. A systematic landscape of neutralizing antibodies against emerging variants is needed. We systematically searched for studies that evaluated neutralizing antibody titers induced by previous infection or vaccination against SARS-CoV-2 variants and collected individual data. We identified 106 studies meeting the eligibility criteria. Lineage B.1.351 (beta), P.1 (gamma) and B.1.617.2 (delta) significantly escaped natural infection–mediated neutralization, with an average of 4.1-fold (95% confidence interval [CI]: 3.6–4.7-fold), 1.8-fold (1.4–2.4-fold), and 3.2-fold (2.4–4.1-fold) reduction in live virus neutralization assay, while neutralizing titers against B.1.1.7 (alpha) decreased slightly (1.4-fold [95% CI: 1.2–1.6-fold]). Serum from vaccinees also led to significant reductions in neutralization of B.1.351 across different platforms, with an average of 7.1-fold (95% CI: 5.5–9.0-fold) for nonreplicating vector platform, 4.1-fold (3.7–4.4-fold) for messenger RNA platform, and 2.5-fold (1.7–2.9-fold) for protein subunit platform. Neutralizing antibody levels induced by messenger RNA vaccines against SARS-CoV-2 variants were similar to, or higher, than that derived from naturally infected individuals.
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The Alpha variant is susceptible to neutralization by most neutralizing mAbs as well as by most plasma samples from previously infected persons.
“The Alpha variant is susceptible to neutralization by most neutralizing mAbs as well as by most plasma samples from previously infected persons 97,102,121,149,159,[203][204][205][206] (fIg.5).”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
The Alpha variant has displayed 3-fold to 10-fold reduced susceptibility to approximately 15% of plasma samples from recipients of an authorized mRNA vaccine.
“The Alpha variant has displayed 3-fold to 10-fold reduced susceptibility to approximately 15% of plasma samples from recipients of an authorized mRNA vaccine 97,102,121,148,149,152,159,204,208,209 .”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
Of plasma samples from persons receiving one of the two authorized mRNA vaccines, about 60% had 3-fold to 10-fold and 5% had >10-fold reduced neutralizing activity to the Gamma variant.
“Of plasma samples from persons receiving one of the two authorized mRNA vaccines, about 60% had 3-fold to 10-fold and 5% had >10-fold reduced neutralizing activity 97,103,117,167,217,230 (fIg.5).”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
Of convalescent plasma samples obtained from persons infected with early pandemic variants or with the Alpha variant, about 20% had 3-fold to 10-fold and 10% had >10-fold reduced neutralizing activity to the Gamma variant.
“Of convalescent plasma samples obtained from persons infected with early pandemic variants or with the Alpha variant, about 20% had 3-fold to 10-fold and 10% had >10-fold reduced neutralizing activity 97,103,117,203,217,228,229 (fIg.5).”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
Of plasma samples obtained from persons receiving one of the mRNA vaccines, 45% had 3-fold to 10-fold and 30% had >10-fold reduced Beta variant neutralizing activity.
“Of plasma samples obtained from persons receiving one of the mRNA vaccines, 45% had 3-fold to 10-fold and 30% had >10-fold reduced Beta variant neutralizing activity 97,104,117,121,151,204,208,209,222,223 (fIg.5).”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
The Beta variant has displayed 3-fold to 10-fold reduced susceptibility to 46% and >10-fold reduced susceptibility to 22% of convalescent plasma samples compared with early pandemic variants.
“The Beta variant has displayed 3-fold to 10-fold reduced susceptibility to 46% and >10-fold reduced susceptibility to 22% of convalescent plasma samples compared with early pandemic variants 97,101,104,121,124,203,204,[218][219][220] (fIg.5).”
From The biological and clinical significance of emerging SARS-CoV-2 variants (2021) · cites this paper as [97]
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Somersan-Karakaya, S., Mylonakis, E. E., Menon, V. P., Wells, J. C., Ali, S., Sivapalasingam, S., Sun, Y., Bhore, R., Mei, J., Miller, J., et al. (2022) · The Journal of Infectious Diseases · doi:10.1093/infdis/jiac320 · Cited by 53 · see citing works
Antibody Titers and Protection against Omicron (BA.1 and BA.2) SARS-CoV-2 Infection
Dimeglio, C., Migueres, M., Bouzid, N., Chapuy‐Regaud, S., Gernigon, C., Da-Silva, I., Porcheron, M., Martin‐Blondel, G., Hérin, F., & Izopet, J. (2022) · Vaccines · doi:10.3390/vaccines10091548 · Cited by 45 · see citing works
SARS-CoV-2 journey: from alpha variant to omicron and its sub-variants
Hattab, D., Amer, M. F. A., Al‐Alami, Z. M., & Bakhtiar, A. (2024) · Infection · doi:10.1007/s15010-024-02223-y · Cited by 44 · see citing works
Liu, Y., Wang, Z., Zhuang, X., Zhang, S., Chen, Z., Zou, Y., Sheng, J., Li, T., Tai, W., Yu, J., et al. (2023) · Nature Communications · doi:10.1038/s41467-023-37926-7 · Cited by 42 · see citing works
Self-citationSARS-CoV-2—The Role of Natural Immunity: A Narrative Review
Diani, S., Leonardi, E. A., Cavezzi, A., Ferrari, S., Iacono, O., Limoli, A., Bouslenko, Z., Natalini, D., Conti, S., Mantovani, M., et al. (2022) · Journal of Clinical Medicine · doi:10.3390/jcm11216272 · Cited by 44 · see citing works
“There are studies that indicate that vaccination in recovered patients increases the antibody titer [164,171,175,176] or improve the outcome of the disease [150,170] but in some cases these studies have been carried out only in vitro, and therefore do not consider the clinical aspects (see for instance [177–179]).”
BackgroundLiang, X., Xu, Q., Jia, Z.-J., Wu, M., Liu, Y., Lin, L., Liu, L., & Yang, T. (2022) · Frontiers in Immunology · doi:10.3389/fimmu.2022.876037 · Cited by 42 · see citing works
Wang, J., Wen, Y., Zhou, S., Zhang, H., Peng, X., Zhang, R., Yin, X., Qiu, H. Y., Gong, R., Yang, G., et al. (2022) · Journal of Medicinal Chemistry · doi:10.1021/acs.jmedchem.1c02000 · Cited by 42 · see citing works
Anderson, E. M., Li, S. H., Awofolaju, M., Eilola, T., Goodwin, E. C., Bolton, M. J., Gouma, S., Manzoni, T. B., Hicks, P. D., Goel, R. R., et al. (2022) · Cell Reports · doi:10.1016/j.celrep.2022.111496 · Cited by 35 · see citing works
“Studies have shown that antibodies elicited by vaccination and infections differentially recognize and neutralize SARS-CoV-2 variants (Chen et al., 2021; Cho et al., 2021; Goel et al., 2021b; Greaney et al., 2021; Planas et al., 2021; Stamatatos et al., 2021; Starr et al., 2021; Wang et al., 2021a).”
Focosi, D., Tuccori, M., Baj, A., & Maggi, F. (2021) · Viruses · doi:10.3390/v13071211 · Cited by 37 · see citing works
Zhao, W., Chen, W., Li, J., Chen, M., Li, Q., Lv, M., Zhou, S., Bai, S., Wang, Y., Zhang, L., et al. (2022) · mBio · doi:10.1128/mbio.00181-22 · Cited by 37 · see citing works
Investigating vaccine-induced immunity and its effect in mitigating SARS-CoV-2 epidemics in China
Liu, H., Zhang, J., Cai, J., Deng, X., Peng, C., Chen, X., Yang, J., Wu, Q., Chen, X., Chen, Z., et al. (2022) · BMC Medicine · doi:10.1186/s12916-022-02243-1 · Cited by 37 · see citing works
Self-citationda Silva, S. J. R., de Lima, S. C., da Silva, R. C., Kohl, A., & Pena, L. (2022) · Frontiers in Medicine · doi:10.3389/fmed.2021.836826 · Cited by 36 · see citing works
Zedan, H. T., Yassine, H. M., Al‐Sadeq, D. W., Liu, N., Qotba, H. A., Nicolai, E., Pieri, M., Bernardini, S., Abu-Raddad, L. J., & Nasrallah, G. K. (2022) · Scientific Reports · doi:10.1038/s41598-022-21317-x · Cited by 35 · see citing works
Immune correlates of protection for SARS-CoV-2, Ebola and Nipah virus infection
Escudero-Pérez, B., Lawrence, P., & Castillo-Olivares, J. (2023) · Frontiers in Immunology · doi:10.3389/fimmu.2023.1156758 · Cited by 32 · see citing works
The intestinal microbiota and improving the efficacy of COVID-19 vaccinations
Chen, J., Vitetta, L., Henson, J. D., & Hall, S. (2021) · Journal of Functional Foods · doi:10.1016/j.jff.2021.104850 · Cited by 32 · see citing works
Liang, Y., Zou, L., Lin, H., Li, B., Zhao, J., Wang, H., Sun, J., Chen, J., Mo, Y., Yang, X., et al. (2022) · ACS Synthetic Biology · doi:10.1021/acssynbio.1c00643 · Cited by 28 · see citing works
Self-citationResearch progress on vaccine efficacy against SARS-CoV-2 variants of concern
Bian, L., Liu, J., Gao, F., Gao, Q., He, Q., Mao, Q., Wu, X., Xu, M., & Liang, Z. (2022) · Human Vaccines & Immunotherapeutics · doi:10.1080/21645515.2022.2057161 · Cited by 29 · see citing works
Chen, X., Wang, W., Chen, X., Wu, Q., Sun, R., Ge, S., Zheng, N., Lu, W., Yang, J., Rodewald, L. E., et al. (2022) · BMC Medicine · doi:10.1186/s12916-022-02249-9 · Cited by 25 · see citing works
“Compared to neutralizing antibody levels induced by natural infection, vaccination may induce similar or lower neutralizing antibody levels [3] that decay faster [4].”
BackgroundMethodSelf-citationXu, S. S., Li, J., Wang, H., Wang, F., Yin, Z., & Wang, Z. (2023) · BMC Medicine · doi:10.1186/s12916-023-02861-3 · Cited by 27 · see citing works
“” Data in one article was of the WT strain, and the study showed that antibodies in vaccine-induced serum largely retained neutralizing response against Alpha [26], so we merged the evaluation of the WT strain with the Alpha strain data.”
ResultSix-month follow-up of a booster dose of CoronaVac in two single-centre phase 2 clinical trials
Xin, Q., Wu, Q., Chen, X., Han, B., Chu, K., Song, Y., Jin, H., Chen, P., Lu, W., Yang, T., et al. (2022) · Nature Communications · doi:10.1038/s41467-022-30864-w · Cited by 25 · see citing works
Self-citationFactors Affecting the Antibody Immunogenicity of Vaccines against SARS-CoV-2: A Focused Review
Cheng, Z. J., Xue, M., Zheng, P., Lyu, J., Zhan, Z., Hu, H., Zhang, Y., Zhang, X. D., & Sun, B. (2021) · Vaccines · doi:10.3390/vaccines9080869 · Cited by 25 · see citing works
Contamination of Hospital Surfaces with Bacterial Pathogens under the Current COVID-19 Outbreak
Pochtovyi, A. A., Vasina, D. V., Kustova, D. D., Divisenko, E. V., Kuznetsova, N. A., Burgasova, O., Kolobukhina, L. V., Петрович, Т. А., Gushchin, V. А., & Al, G. (2021) · International Journal of Environmental Research and Public Health · doi:10.3390/ijerph18179042 · Cited by 22 · see citing works
Morinaga, Y., Tani, H., Terasaki, Y., Nomura, S., Kawasuji, H., Shimada, T., Igarashi, E., Saga, Y., Yoshida, Y., Yasukochi, R., et al. (2021) · Microbiology Spectrum · doi:10.1128/spectrum.00560-21 · Cited by 24 · see citing works
“also reports that variant neutralizing activity is similar to WT (14, 29, 30), our findings”
ResultZhou, S., Zhang, R., Zhang, H.-W., Liu, Y., Wen, Y., Wang, J., Li, Y., You, Z.-W., Yin, X., Qiu, H. Y., et al. (2022) · Chemical Communications · doi:10.1039/d1cc06520c · Cited by 24 · see citing works
Immune Evasive Effects of SARS-CoV-2 Variants to COVID-19 Emergency Used Vaccines
Zhang, Y., Ndzouboukou, J. B., Gan, M., Lin, X., & Fan, X. (2021) · Frontiers in Immunology · doi:10.3389/fimmu.2021.771242 · Cited by 21 · see citing works
Rates of COVID-19 Among Unvaccinated Adults With Prior COVID-19
Ridgway, J. P., Tideman, S., Wright, B. J., & Robicsek, A. A. (2022) · JAMA Network Open · doi:10.1001/jamanetworkopen.2022.7650 · Cited by 18 · see citing works
Serological response after SARS-CoV2 vaccination in healthcare workers: a multicenter study
Visci, G., Zunarelli, C., Mansour, I., Porru, S., Palma, G. D., Duval, X., Monaco, M. G. L., Spiteri, G., Carta, A., Lippi, G., et al. (2022) · La Medicina del Lavoro · doi:10.23749/mdl.v113i2.13017 · Cited by 18 · see citing works
Rajpal, V. R., Sharma, S. K., Sehgal, D., Singh, A., Kumar, A., Vaishnavi, S., Tiwari, M., Bhalla, H., Goel, S., & Raina, S. (2022) · Future Virology · doi:10.2217/fvl-2021-0277 · Cited by 17 · see citing works
Yeung, P. S.-W., Wang, H., Sibai, M., Solis, D., Yamamoto, F. F., Iwai, N., Jiang, B., Hammond, N. A., Truong, B., Bihon, S., et al. (2022) · Journal of Clinical Microbiology · doi:10.1128/jcm.00178-22 · Cited by 17 · see citing works
The efficacy of COVID-19 vaccines against the B.1.617.2 (delta) variant
Cai, C., Liu, Y., Zeng, S., Shen, H., & Han, Y. (2021) · Molecular Therapy · doi:10.1016/j.ymthe.2021.09.024 · Cited by 17 · see citing works
“Chen et al.(10) found that mRNAbased vaccines produced the highest level of neutralizing antibodies in both normal vaccinated humans and in patients infected with delta variant, which is consistent with the efficacy analysis.”
Ortega, M. M., da Silva, L. T., Candido, E. D., Zheng, Y., Tiyo, B. T., Ferreira, A. E. F., Correa‐Silva, S., Scagion, G. P., Leal, F. B., Chalup, V. N., et al. (2022) · Scientific Reports · doi:10.1038/s41598-022-14283-x · Cited by 16 · see citing works
Epidemiology and genetic diversity of SARS-CoV-2 lineages circulating in Africa
Okoh, O. S., Nii-Trebi, N. I., Jakkari, A., Olaniran, T. T., Senbadejo, T. Y., Kafintu-kwashie, A. A., Dairo, E. O., Ganiyu, T. O., Akaninyene, I. E., Ezediuno, L. O., et al. (2022) · iScience · doi:10.1016/j.isci.2022.103880 · Cited by 13 · see citing works
Bongiovanni, M., Liuzzi, G., Schiavon, L., Gianturco, L., & Giuliani, G. (2021) · Journal of Clinical Virology · doi:10.1016/j.jcv.2021.104962 · Cited by 14 · see citing works
Homan, T., Mazzilli, S., Chieti, A., Musa, A., Roth, A., Fortunato, F., Bisceglia, L., Prato, R., Lopalco, P. L., & Martinelli, D. (2022) · Scientific Reports · doi:10.1038/s41598-022-23235-4 · Cited by 14 · see citing works
Li, X., Liang, C., & Xiao, X. (2021) · Vaccines · doi:10.3390/vaccines9101139 · Cited by 14 · see citing works
Zhang, H., Hua, Q., Xu, N., Zhang, X., Chen, B., Xi-jun, M., Hu, J., Chen, Z., Yu, P., Lei, H., et al. (2023) · eLife · doi:10.7554/elife.84056 · Cited by 14 · see citing works
Self-citationKim, Y., Bae, J., Kwon, K. T., Chang, H., Lee, W. K., Park, H., Kim, J., Choi, I., Park, M., & Kim, S. (2022) · Scientific Reports · doi:10.1038/s41598-022-17605-1 · Cited by 11 · see citing works
Seeing the T cell Immunity of SARS-CoV-2 and SARS-CoV: Believing the Epitope-Oriented Vaccines
Yue, C., Wang, P., Tian, J., Gao, G. F., Liu, K., & Liu, W. J. (2023) · International Journal of Biological Sciences · doi:10.7150/ijbs.80468 · Cited by 12 · see citing works
An Integrated Platform for Serological Detection and Vaccination of COVID-19
Wei, S.-C., Hsu, W.-T., Chiu, C.-H., Chang, F., Lo, H.-R., Liao, C.-Y., Yang, H., Chou, Y., Tsai, C.-H., & Chao, Y. (2021) · Frontiers in Immunology · doi:10.3389/fimmu.2021.771011 · Cited by 11 · see citing works
“, its neutralizing antibody titers may decrease upon encountering Beta variants, but not in the case of Alpha and Gamma variants (24, 73).”
BackgroundDubé, C., Paris‐Robidas, S., Andreani, G., Gutzeit, C., D’Aoust, M., Ward, B. J., & Trépanier, S. (2022) · Vaccine · doi:10.1016/j.vaccine.2022.05.046 · Cited by 11 · see citing works
O’Donnell, K. L., Gourdine, T., Fletcher, P., Shifflett, K., Furuyama, W., Clancy, C. S., & Marzi, A. (2022) · Vaccines · doi:10.3390/vaccines10030435 · Cited by 8 · see citing works
Corrao, G., Franchi, M., Rea, F., Cereda, D., Barone, A. A., Borriello, C. R., Valle, P. G. D., Ercolanoni, M., Fortino, I., Jara, J., et al. (2022) · BMC Medicine · doi:10.1186/s12916-022-02262-y · Cited by 10 · see citing works
“Levels of neutralising antibodies induced by m-RNA vaccines against SARS-CoV-2 variants have been found to be similar (or higher) than those derived from naturally infected individuals [9].”
BackgroundZhang, R., Zhou, S., Feng, R.-R., Wen, Y., Ding, D., Zhang, Z.-M., Wei, H., & Guo, J. (2023) · ACS Chemical Biology · doi:10.1021/acschembio.3c00050 · Cited by 9 · see citing works
Seraceni, S., Zocca, E., Cervone, T. E., Tomassetti, F., Polidori, I., Valisi, M., Broccolo, F., Calugi, G., Bernardini, S., & Pieri, M. (2022) · Diseases · doi:10.3390/diseases10030049 · Cited by 9 · see citing works
“However, limited research has been conducted on the T-cell immune response, particularly after vaccination [8,9].”
BackgroundFollmann, D. A., Janes, H., Chu, E., Jayashankar, L., Petropoulos, C. J., Serebryannyy, L., Carroll, R., Jean‐Baptiste, N., Narpala, S., Lin, B. C., et al. (2023) · Open Forum Infectious Diseases · doi:10.1093/ofid/ofad069 · Cited by 10 · see citing works
Grassi, T., Lobreglio, G., Panìco, A., Rosato, C., Zizza, A., Lazzari, R., Chicone, M., Indino, F., & Bagordo, F. (2022) · Vaccines · doi:10.3390/vaccines10111948 · Cited by 9 · see citing works
“Compared to antibody concentration induced by natural infection, vaccination may induce similar or lower neutralizing antibody levels [10] that decay faster [11].”
Zendt, M., Carrillo, F. A. B., Kelly, S., Saturday, T. A., DeGrange, M., Ginigeme, A., Wu, L., Callier, V., Ortega‐Villa, A. M., Faust, M. T., et al. (2023) · Science Advances · doi:10.1126/sciadv.adh3150 · Cited by 11 · see citing works
Épaulard, O., Buisson, M., Némoz, B., Maréchal, M. L., Terzi, N., Payen, J., Froidure, M., Blanc, M., Mounayar, A.-L., Quénard, F., et al. (2021) · Journal of Infection · doi:10.1016/j.jinf.2021.10.009 · Cited by 9 · see citing works
Liu, X., Xu, Y., Tao, L., Li, X., Chen, G., & Liu, Q. (2025) · Journal of Functional Biomaterials · doi:10.3390/jfb16050185 · Cited by 8 · see citing works
“The emergence of SARS-CoV-2 variants, for example, has diminished the efficacy of COVID-19 vaccines [5,6].”
Bonura, F., Genovese, D., Amodio, E., Calamusa, G., Sanfilippo, G. L., Cacioppo, F., Giammanco, A., Grazia, S. D., & Ferraro, D. (2022) · Vaccines · doi:10.3390/vaccines10060874 · Cited by 7 · see citing works
Cortés-Sarabia, K., Luna-Pineda, V., Rodríguez-Ruíz, H., Leyva-Vázquez, M., Hernández-Sotelo, D., Beltrán-Anaya, F., Vences-Velázquez, A., del Moral-Hernández, O., & Illades-Aguiar, B. (2022) · Scientific Reports · doi:10.1038/s41598-022-18517-w · Cited by 5 · see citing works
Tzou, P. L., Tao, K., Pond, S. L. K., & Shafer, R. W. (2021) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2021.11.24.469823 · Cited by 8 · see citing works
SARS-CoV-2 cellular coinfection is limited by superinfection exclusion
Sims, A., Weir, D. J., Cole, S. J., & Hutchinson, E. C. (2025) · Journal of Virology · doi:10.1128/jvi.02077-24 · Cited by 7 · see citing works
Immordino, P., Pisciotta, V., Amodio, E., Bonura, C., Bonura, F., Cacioppo, F., Calamusa, G., Capra, G., Casuccio, A., Grazia, S. D., et al. (2023) · Vaccines · doi:10.3390/vaccines11111702 · Cited by 7 · see citing works
“…since the beginning of the a target of turn, 20]. we SARS-CoV-2 strain, whose spike protein mRNA was included in the vaccine from in have escape the 36]. neutralizing potency when Alpha was not which the nVP population was infected [38], but the lack of protection from subsequent VOCs somewhat…”
BackgroundKinetics of severe acute respiratory syndrome coronavirus 2 infection antibody responses
Lin, Y., Zhu, J., Liu, Z., Li, C., Guo, Y., Wang, Y., & Chen, K. (2022) · Frontiers in Immunology · doi:10.3389/fimmu.2022.864278 · Cited by 7 · see citing works
Prediction of vaccine efficacy of the Delta variantPreprint
Chen, X., Azman, A. S., Lu, W., Sun, R., Zheng, N., Ge, S., Deng, X., Yang, J., Leung, D. T., & Yu, H. (2021) · medRxiv · doi:10.1101/2021.08.26.21262699 · Cited by 7 · see citing works
Self-citationSARS-CoV-2 Neutralizing Antibodies in Chile after a Vaccination Campaign with Five Different Schemes
Aguilera, X., Hormazábal, J., Vial, C., Cortés, J., González, C., Rubilar, P. A., Apablaza, M., Ramírez-Santana, M., Icaza, G., Núñez, L., et al. (2022) · Vaccines · doi:10.3390/vaccines10071051 · Cited by 6 · see citing works
Nature of Acquired Immune Responses, Epitope Specificity and Resultant Protection from SARS-CoV-2
Gorczynski, R. M., Lindley, R. A., Steele, E. J., & Wickramasinghe, N. C. (2021) · Journal of Personalized Medicine · doi:10.3390/jpm11121253 · Cited by 7 · see citing works
Drews, S. J., Hu, Q., Samson, R., Abe, K. T., Rathod, B., Colwill, K., Gingras, A., Yi, Q., & O’Brien, S. F. (2022) · Microbiology Spectrum · doi:10.1128/spectrum.02262-21 · Cited by 5 · see citing works
Kapłonek, P., Bertera, H. L., Lee, D. W., Cizmeci, D., Yu, W., Wu, K., Chalkias, S., Wahid, R., Edwards, D., Alter, G., et al. (2026) · Infectious Diseases and Therapy · doi:10.1007/s40121-026-01303-w · Cited by 4 · see citing works
Dai, Y.-C., Lin, Y.-C., Ching, L. L., Tsai, J., Ishikawa, K. M., Tsai, W.-Y., Chen, J. J., Nerurkar, V. R., & Wang, W. (2023) · Microbiology Spectrum · doi:10.1128/spectrum.04081-22 · Cited by 4 · see citing works
Zhang, Y., Liu, J., Li, H., Yuan, F., Jiang, C., Cang, T., Li, K., Hu, Q., Liu, J., & Zheng, A. (2023) · Journal of Medical Virology · doi:10.1002/jmv.28806 · Cited by 4 · see citing works
“ranges from 50 to 100.(27) All rVSV‐immunized groups, regardless of whether they received a low (2 × 10(5) FFU) or high (2 × 10(6) FFU) dose, demonstrated significantly higher IC50 titers than the groups that received two‐doses of KCONVAC or Vaxzevria; potent and broad neutralization activities against authentic SARS‐…”
BackgroundUnravelling humoral immunity in SARS-CoV-2: Insights from infection and vaccination
Najimi, N., Kadi, C., Elmtili, N., Seghrouchni, F., & Bakri, Y. (2024) · Human Antibodies · doi:10.3233/hab-230017 · Cited by 4 · see citing works
“The neutralization of Beta was similarly reduced in an analysis employing serum from vaccine recipients, with an average reduction of 7.1-fold for a non-replicating vector platform and 4.1-fold for an mRNA platform [42].”
InfluentialYanamandra, U., Tandel, K., Rayapureddi, K., Singh, S. P., Arivalagan, B., Kalra, D. K., Sahu, R., Menon, A. S., & Kotwal, N. (2024) · Medical Journal Armed Forces India · doi:10.1016/j.mjafi.2024.05.014 · Cited by 3 · see citing works
Frueh, F., Maneval, D., Bohm, R., Dufour, J. P., Blair, R., Powell, K., Aye, P., Golden, N. A., Roy, C., Spencer, S., et al. (2021) · bioRxiv · doi:10.1101/2021.07.20.453127 · Cited by 3 · see citing works
Letter to the editor: Vitamin D deficiency in critically ill COVID-19 ARDS patients
dos Santos, M. E. R. A., Barros, W. M. A., Fernandes, M. S. D. S., da Silva, A. B. J., & Souza, V. O. N. (2022) · Clinical Nutrition · doi:10.1016/j.clnu.2022.01.003 · Cited by 3 · see citing works
Fibriani, A., Yamahoki, N., Shani, A. M., Rofiqoh, A., Siregar, A. L. F., Gunawan, C., Mayorga, C. G. D., Tjia, T. O. S., Nugrahapraja, H., Giri-Rachman, E. A., et al. (2025) · Vaccine X · doi:10.1016/j.jvacx.2025.100632 · Cited by 2 · see citing works
Enhanced immunity against SARS-CoV-2 in returning Chinese individuals
Yuan, R., Chen, H., Yi, L., Li, X., Hu, X., Li, X., Zhang, H., Zhou, P., Liang, C., Lin, H., et al. (2024) · Human Vaccines & Immunotherapeutics · doi:10.1080/21645515.2023.2300208 · Cited by 3 · see citing works
Zhang, S., Tang, L., Bao, C., Wang, S., Li, B., Huang, L., Song, H., Fu, J., Xu, Z., Meng, F., et al. (2024) · Cancer Medicine · doi:10.1002/cam4.7304 · Cited by 1 · see citing works
Singh, S., & Gupta, G. D. (2025) · FEBS Open Bio · doi:10.1002/2211-5463.70064 · Cited by 2 · see citing works
Outcome Heterogeneity in Coronavirus Disease 2019 (COVID-19) Patients Receiving Tocilizumab
Niu, M. M., Cao, Y., Li, R., Fan, G. Z., & Hu, P. (2021) · Clinical Infectious Diseases · doi:10.1093/cid/ciab816 · Cited by 2 · see citing works
Vicenti, I., Basso, M., Dragoni, F., Gatti, F., Scaggiante, R., Fiaschi, L., Parisi, S. G., & Zazzi, M. (2022) · Vaccines · doi:10.3390/vaccines10040580 · Cited by 2 · see citing works
“as L452R, P681R, and T478K, a substantial fold reduction in the neutralizing antibodies elicited by vaccination or infection compared to that for reference lineages was previously reported [19].”
ResultBachelet, V. C., Silva-Ayarza, I., & Navarrete, M. S. (2023) · Medwave · doi:10.5867/medwave.2023.11.2787 · Cited by 2 · see citing works
Chen, Z., Azman, A. S., Chen, X., Zou, J., Tian, Y., Sun, R., Xu, X., Wu, Y., Lu, W., Ge, S., et al. (2021) · medRxiv · doi:10.1101/2021.09.06.21263152 · Cited by 2 · see citing works
Self-citationCovid-19 : Natural immunity versus vaccine immunityPreprint
Banoun, H. (2021) · doi:10.32388/dp264j · Cited by 2 · see citing works
Immune response to COVID-19 vaccines in people with immunodeficienciesPreprint
Ricotta, E., Zendt, M., Castillo, F. B., Kelly, S., Saturday, T. A., DeGrange, M., Ginigeme, A., Wu, L., Callier, V., Ortega‐Villa, A. M., et al. (2023) · Research Square · doi:10.21203/rs.3.rs-2514984/v1 · Cited by 2 · see citing works
Gutiérrez, L. J., Tosso, R. D., Zarycz, M. N. C., Enriz, R., & Baldoni, H. (2022) · Molecular Simulation · doi:10.1080/08927022.2022.2111421 · Cited by 1 · see citing works
Novellis, D. D., Folliero, V., Giudice, V., Pezzullo, L., Sanna, G., Fontana, R., Guariglia, R., Zannella, C., Mettivier, L., Ferrara, I., et al. (2023) · Clinical and Experimental Medicine · doi:10.1007/s10238-023-01223-w · Cited by 1 · see citing works
“%) in hospitalized COVID-19 patients with severe disease to 71.9%, with high inter-trial variability [31–36].”
BackgroundInfluentialShakinah, S., Aini, M. H., Sekartini, R., Soedjatmiko, S., Medise, B. E., Gunardi, H., Yuniar, I., Indawati, W., Koesnoe, S., Harimurti, K., et al. (2024) · Vaccines · doi:10.3390/vaccines12040371 · Cited by 1 · see citing works
“Severely ill patients show higher levels of neutralizing antibody titers compared to mild cases [16–18].”
BackgroundMbaye, A., Diallo, H., Gnimadi, T. A. C., Kadio, K. J. J. O., Soumah, A. K., Koivogui, J., Monemou, J. L., Povogui, M. K., Kaba, D., Hounmenou, C. G., et al. (2025) · BMC Infectious Diseases · doi:10.1186/s12879-024-10411-2 · Cited by 1 · see citing works
Oberemok, V. V., Andreeva, O. A., Laikova, K. V., Novikov, I. A., Puzanova, Y. V., & Kubyshkin, A. V. (2022) · Inflammation Research · doi:10.1007/s00011-022-01567-1 · Cited by 1 · see citing works
Zedan, H. T., Yassine, H. M., Al‐Sadeq, D. W., Liu, N., Qotba, H. A., Nicolai, E., Pieri, M., Bernardini, S., Abu-Raddad, L. J., & Nasrallah, G. K. (2022) · Research Square · doi:10.21203/rs.3.rs-1718587/v1 · Cited by 1 · see citing works
Basile, K., Agius, J. E., Fong, W., McPhie, K. A., Fennel, M., Ko, D., Heuston, L., Lam, C., Arnott, A., Chen, S. C. ‐., et al. (2023) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2023.09.24.558921 · Cited by 1 · see citing works
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- Authors
- Chen, X., Chen, Z., Azman, A. S., Sun, R., Lu, W., Zheng, N., Zhou, J., Wu, Q., Deng, X., Zhao, Z., Chen, X., Ge, S., Yang, J., Leung, D. T., & Yu, H.
- Affiliations
- Fudan University (CN)
- University of Geneva (CH)
- University of Utah (US)
- Corresponding author
- Yu, Hongjie
- ORCID
- Venue
- Clinical Infectious Diseases
- Publisher
- Oxford University Press (OUP)
- Published
- 2021-07-24
- Volume
- 74
- Issue
- 4
- Pages
- 734-742
- ISSN
- 1058-4838 (ISSN-L)
- 1537-6591
- PMC
- PMC9016754
- OpenAlex
- W3183560460
- Cited by
- 113
- References
- 52
- Citations by year
- 2026: 2 · 2025: 9 · 2024: 7 · 2023: 20 · 2022: 52 · 2021: 23
- FWCI
- 2.98
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model (vor)
- Locations
- Clinical Infectious Diseases (publishedVersion)
- medRxiv (acceptedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (submittedVersion, cc-by-nc-nd)
- Funders
- National Science Fund for Distinguished Young Scholars (81525023)
- Program of Shanghai Academic Research Leader (18XD1400300)
- National Science and Technology Major Project (2018ZX10713001-007, 2017ZX10103009-005, 2018ZX10201001-010)
- National Institutes of Health (R01 AI135115)
- Topics
- Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
- Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
- Keywords
- SARS-CoV-2 variants, neutralizing antibodies, antibody escape, natural infection, COVID-19 vaccines, mRNA vaccines, vector vaccines, subunit vaccine, neutralization titers
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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