Ruangsirinusorn, S.; Salee, P.; Winichakoon, P.; Wipasa, J.; Chawansuntati, K.; Yasri, S.; Praparattanapan, J.; Solai, N.; Chaiwarith, R. Comparison of Antibody Responses in Older Adults Who Had Natural Infection vs. Those Who Received an mRNA Booster Following ChAdOx1 nCoV-19 Vaccination. J Health Sci Med Res 2026, 44, e20251277.