JUL 20, 2026 · JOURNAL ARTICLE
ChAdOx1 nCoV-19 coronavirus vaccine: Long-term safety and immunological responses
Vaccine
Prospective follow-up of pre-licensure trial participants with 4470 enrollees and 86% completion rate found no emergent safety signals over 11.77 months median follow-up, supporting the established safety profile of ChAdOx1 nCoV-19 vaccine.
Reported
Sample size enrolled4470
Completion rate3845/4470 (86.0%)
Median follow-up duration11.77 months