Certain vaccines confer only short-term protection due to rapid waning of neutralizing antibodies
the verdict
SUPPORTED
the evidence backs this
confidence 81/100
Multiple studies consistently demonstrate that vaccine-induced neutralizing antibody levels and clinical efficacy decline over time, necessitating booster doses to maintain protection.
Evidence for · 5
Waning immunity and the future of booster vaccination strategies in global vaccine programs post COVID-19.
2026 · cited by 7
Paper 0 notes that immunity and efficacy against diseases such as COVID-19 and influenza decrease over time, with short-term booster effects.
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More for · 4
Improved estimates of COVID-19 correlates of protection, antibody decay and vaccine efficacy waning: a joint modelling approach
2024 · cited by 1
Paper 6 demonstrates that vaccine efficacy and anti-spike IgG antibody levels against COVID-19 wane significantly within months of vaccination.
Long-Term Durability and Dynamics of Anti-S-RBD IgG Response in Healthcare Workers: A Comparative Analysis of Homologous and Heterologous SARS-CoV-2 Vaccination Schedules in a 1-Year Serial Cross-Sectional Study.
2026 · cited by 0
Paper 8 highlights that antibody titers wane significantly over time in mRNA-vaccinated individuals, necessitating booster strategies.
NVX-CoV2372, monovalent mRNA and bivalent mRNA vaccines elicit broadly cross-reactive antibodies against emerging SARS-CoV-2 variants.
2026 · cited by 0
Paper 10 finds that neutralizing antibody levels against variants wane significantly by 12 months post-vaccination.
Dynamics and Protective Effectiveness of Serological Testing Among Healthcare Workers Vaccinated Against COVID-19.
2026 · cited by 0
Paper 11 shows that antibody titers peak initially and then decline sharply over subsequent quarters, illustrating antibody waning.