Both the 1st and 2nd booster vaccination could offer additional protection against SARS-CoV-2 infections.
The additional protection of the 1st booster vaccination may vary by variants of concern and vaccine types.
The protection of the 1st booster waned fast but that of the 2nd booster remained stable in a short period.
The sources of heterogeneity for the additional protection of the 2nd booster still remain uncertain.
| [1] | Feikin, D.R., Higdon, M.M., Abu-Raddad, L.J., et al. (2022). Duration of effectiveness of vaccines against SARS-CoV-2 infection and COVID-19 disease: Results of a systematic review and meta-regression. Lancet 399: 924−944. DOI: 10.1016/s0140-6736(22)00152-0. |
| [2] | Menegale, F., Manica, M., Zardini, A., et al. (2023). Evaluation of waning of SARS-CoV-2 vaccine–induced immunity: A systematic review and meta-analysis. JAMA Netw. Open 6: e2310650−e2310650. DOI: 10.1001/jamanetworkopen.2023.10650. |
| [3] | Yang, Z.R., Jiang, Y.W., Li, F.X., et al. (2023). Efficacy of SARS-CoV-2 vaccines and the dose-response relationship with three major antibodies: A systematic review and meta-analysis of randomised controlled trials. Lancet Microbe 4: e236−e246. DOI: 10.1016/s2666-5247(22)00390-1. |
| [4] | Bar-On, Y.M., Goldberg, Y., Mandel, M., et al. (2021). Protection of BNT162b2 vaccine booster against Covid-19 in Israel. N. Engl. J. Med. 385: 1393−1400. DOI: 10.1056/NEJMoa2114255. |
| [5] | Bar-On, Y.M., Goldberg, Y., Mandel, M., et al. (2022). Protection by a fourth dose of BNT162b2 against Omicron in Israel. N. Engl. J. Med. 386: 1712−1720. DOI: 10.1056/NEJMoa2201570. |
| [6] | Moreira, E.D., Jr., Kitchin, N., Xu, X., et al. (2022). Safety and efficacy of a third dose of BNT162b2 Covid-19 vaccine. N. Engl. J. Med. 386: 1910−1921. DOI: 10.1056/NEJMoa2200674. |
| [7] | Wang, X.Y., Mahmood, S.F., Jin, F., et al. (2022). Efficacy of heterologous boosting against SARS-CoV-2 using a recombinant interferon-armed fusion protein vaccine (V-01): a randomized, double-blind and placebo-controlled phase III trial. Emerg. Microbes Infect. 11: 1910−1919. DOI: 10.1080/22221751.2022.2088406. |
| [8] | Au, W.Y., and Cheung, P.P.-H. (2022). Effectiveness of heterologous and homologous covid-19 vaccine regimens: Living systematic review with network meta-analysis. BMJ 377: e069989. DOI: 10.1136/bmj-2022-069989. |
| [9] | Pratama, N.R., Wafa, I.A., Budi, D.S., et al. (2022). Effectiveness of Covid-19 vaccines against SARS-CoV-2 Omicron variant (B.1.1.529): A systematic review with meta-analysis and meta-regression. Vaccines (Basel) 10 : 2180. DOI: 10.1101/2022.04.29.22274454. |
| [10] | Higdon, M.M., Baidya, A., Walter, K.K., et al. (2022). Duration of effectiveness of vaccination against COVID-19 caused by the omicron variant. Lancet Infect. Dis. 22: 1114−1116. DOI: 10.1016/s1473-3099(22)00409-1. |
| [11] | Guo, K., Ni, P., Chang, S., et al. (2023). Effectiveness of mRNA vaccine against Omicron-related infections in the real world: A systematic review and meta-analysis. Am. J. Infect. Control 51 : 1049-1055. DOI: https://doi.org/10.1016/j.ajic.2023.02.005. |
| [12] | Song, S., Madewell, Z.J., Liu, M., et al. (2023). Effectiveness of SARS-CoV-2 vaccines against Omicron infection and severe events: A systematic review and meta-analysis of test-negative design studies. Front. Public Health 11: 1195908. DOI: 10.3389/fpubh.2023.1195908. |
| [13] | Xu, J., Lan, X., Zhang, L., et al. (2023). The effectiveness of the first dose COVID-19 booster vs. full vaccination to prevent SARS-CoV-2 infection and severe COVID-19 clinical event: A meta-analysis and systematic review of longitudinal studies. Front. Public Health 11 :1165611. DOI: 10.3389/fpubh.2023.1165611. |
| [14] | Chenchula, S., Karunakaran, P., Sharma, S., et al. (2022). Current evidence on efficacy of COVID-19 booster dose vaccination against the Omicron variant: A systematic review. J. Med. Virol. 94(7): 2969−2976. DOI: 10.1002/jmv.27697. |
| [15] | Petrelli, F., Luciani, A., Borgonovo, K., et al. (2022). Third dose of SARS-CoV-2 vaccine: A systematic review of 30 published studies. J. Med. Virol. 94: 2837−2844. DOI: 10.1002/jmv.27644. |
| [16] | Wu, N., Joyal-Desmarais, K., Ribeiro, P.A.B., et al. (2023). Long-term effectiveness of COVID-19 vaccines against infections, hospitalisations, and mortality in adults: Findings from a rapid living systematic evidence synthesis and meta-analysis up to December, 2022. Lancet Respir. Med. 11 : 439-452. DOI: 10.1016/s2213-2600(23)00015-2. |
| [17] | WHO Coronavirus (COVID-19) Dashboard. https://covid19.who.int/table. |
| [18] | Page, M.J., McKenzie, J.E., Bossuyt, P.M., et al. (2021). The PRISMA 2020 statement: An updated guideline for reporting systematic reviews. BMJ 372: n71. DOI: 10.1136/bmj.n71. |
| [19] | Sterne, J.A., Hernán, M.A., Reeves, B.C., et al. (2016). ROBINS-I: A tool for assessing risk of bias in non-randomised studies of interventions. BMJ 355: i4919. DOI: 10.1136/bmj.i4919. |
| [20] | Higgins, J.P., Altman, D.G., Gøtzsche, P.C., et al. (2011). The Cochrane Collaboration's tool for assessing risk of bias in randomised trials. BMJ 343: d5928. DOI: 10.1136/bmj.d5928. |
| [21] | Scammacca, N., Roberts, G., and Stuebing, K.K. (2014). Meta-analysis with complex research designs: Dealing with dependence from multiple measures and multiple group comparisons. Rev. Educ. Res. 84: 328−364. DOI: 10.3102/0034654313500826. |
| [22] | Balshem, H., Helfand, M., Schünemann, H.J., et al. (2011). GRADE guidelines: 3. Rating the quality of evidence. J. Clin. Epidemiol. 64: 401−406. DOI: 10.1016/j.jclinepi.2010.07.015. |
| [23] | Atmar, R.L., Lyke, K.E., Deming, M.E., et al. (2022). Homologous and heterologous Covid-19 booster vaccinations. N. Engl. J. Med. 386: 1046−1057. DOI: 10.1056/NEJMoa2116414. |
| [24] | Garcia-Beltran, W.F., St Denis, K.J., Hoelzemer, A., et al. (2022). mRNA-based COVID-19 vaccine boosters induce neutralizing immunity against SARS-CoV-2 Omicron variant. Cell 185: 457−466.e454. DOI: 10.1016/j.cell.2021.12.033. |
| [25] | Gao, B., He, L., Bao, Y., et al. (2023). Repeated vaccination of inactivated SARS-CoV-2 vaccine dampens neutralizing antibodies against Omicron variants in breakthrough infection. Cell Res. 33: 258−261. DOI: 10.1038/s41422-023-00781-8. |
| [26] | Chalkias, S., Harper, C., Vrbicky, K., et al. (2022). A bivalent omicron-containing booster vaccine against Covid-19. N. Engl. J. Med. 387: 1279−1291. DOI: 10.1056/NEJMoa2208343. |
| [27] | Mayr, F.B., Talisa, V.B., Shaikh, O., et al. (2022). Effectiveness of homologous or heterologous Covid-19 boosters in veterans. N. Engl. J. Med. 386: 1375−1377. DOI: 10.1056/NEJMc2200415. |
| [28] | Schmidt, T., Klemis, V., Schub, D., et al. (2021). Immunogenicity and reactogenicity of heterologous ChAdOx1 nCoV-19/mRNA vaccination. Nat. Med. 27: 1530−1535. DOI: 10.1038/s41591-021-01464-w. |
| [29] | Duarte-Salles, T., and Prieto-Alhambra, D. (2021). Heterologous vaccine regimens against COVID-19. Lancet 398: 94−95. DOI: 10.1016/s0140-6736(21)01442-2. |
| [30] | McMenamin, M.E., Nealon, J., Lin, Y., et al. (2022). Vaccine effectiveness of one, two, and three doses of BNT162b2 and CoronaVac against COVID-19 in Hong Kong: A population-based observational study. Lancet Infect. Dis. 22: 1435−1443. DOI: 10.1016/s1473-3099(22)00345-0. |
| [31] | Magen, O., Waxman, J.G., Makov-Assif, M., et al. (2022). Fourth dose of BNT162b2 mRNA Covid-19 vaccine in a nationwide setting. N. Engl. J. Med. 386: 1603−1614. DOI: 10.1056/NEJMoa2201688. |
| Liu D., Jiang Y., Wang S., et al., (2024). Relative effectiveness and durability of booster doses of SARS-CoV-2 vaccines: A systematic review and meta-analysis. The Innovation Medicine 2(1): 100051. https://doi.org/10.59717/j.xinn-med.2024.100051 |
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Flowchart of the study selection process
Relative vaccine effectiveness of booster vaccination in preventing infections of different severities, stratified by the median period after the receipt of the latest booster dose
Changes over time in relative vaccine effectiveness of booster vaccination in preventing infections of different severities