ArticleFrontiers in immunology2025
Heterologous ORFV-Ad26 vaccination broadens antibody breadth and amplifies cellular immunity against SARS-CoV-2 spike.
Article in Frontiers in immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Article
- Hybrid immunity strategies: heterologous vaccination combined with natural SARS-CoV-2 infection.Frontiers in medicine · 2026Review
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Authors and funding
6 authors.
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Abstract
The durability of vaccine-induced immunity is often limited by waning responses, antigenic drift, and anti-vector immunity, highlighting the need for innovative vaccination strategies. Heterologous prime-boost approaches can help overcome these barriers by exploiting the complementary strengths of distinct platforms. Here, we evaluated a replication-deficient Orf virus-based spike vaccine (ORFV-S) in combination with the licensed Ad26 vector vaccine Jcovden (Ad26.COV2.S), using SARS-CoV-2 model. In a clinically aligned intramuscular immunogenicity screen in mice, Jcovden induced strong early anti-spike antibody responses but showed limited boostability, whereas ORFV-S was highly boost-responsive. Mixed regimens outperformed both homologous schedules. ORFV-S prime followed by Jcovden boost elicited the highest spike-binding antibody titers and vigorous CD4
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