Post-COVID syndrome patients show reduced anti-Spike antibodies compared to COVID-recovered controls, but enhanced IgG4/IgG1 switch after the third vaccine dose - Rossi, N; Benítez-Cruz, J; Marín-García, P; Azcárate, IG; González-Escalada, A; Hervás, OG; Alarcón, B; Regueiro, JR; Bautista, JM; Martinez-Quiles, N (Frontiers In Immunology, 2025)