Cross-reactivity IgG, viral load, severity and vaccination outcome as an approach for understanding humoral immune response against SARS-CoV-2. - Contreras-Villa J; Rodríguez-Martínez G; Parra-Ortega I; Romo-Castillo M; Cortés-Sarabia K; Saldaña-Ahuactzi Z; Flores-Alanis A; Aureoles-Romero A; Salazar-García M; González J; Eslava-Campos CA; Hernández-Chiñas U; et al. (BMC infectious diseases, 2025)