Trajectories and determinants of respiratory syncytial virus prefusion F-specific IgG in older adults. - Simbeya A; Negoro M; Kuurdor ED; Sugata K; Nagao M; Ohtsuka J; Yamamoto S; Ogasawara N; Fukumura M; Nosaka T; Suga S; Taniguchi K (BMC infectious diseases, 2026)