The periodontal pathogen Fusobacterium nucleatum is associated with disease severity in multiple sclerosis. - Naito, Hiroyuki; Nakamori, Masahiro; Nishi, Hiromi; Toko, Megumi; Muguruma, Tomoko; Yamada, Hidetada; Sugimoto, Takamichi; Yamazaki, Yu; Ochi, Kazuhide; Kawaguchi, Hiroyuki; Maruyama, Hirofumi (Scientific Reports, 2025)