BCG immunisation through intranasal instillation protects mice against Streptococcus pneumoniae infection by enhancing alveolar macrophage activity. - Sencio V; Bouzet C; Fine J; Costa C; Grandé A; Vandeputte A; Van Maele L; Rouanet C; Sirard JC; Machelart A (Scientific reports, 2026)