Williams PC, Jones AH, Duguid R, Phuong LK, Gwee A, Johnston N, Butters C, Oftadeh S, Chen S, Koirala A, Homaira N, Kandasamy R, Bartlett AW, Jaffe A, McMullan B, Palasanthiran P, Wijeratne P, Britton P, Fathima P, Snelling TN, Sintchenko V, Jayasinghe S Full text Pneumococcal disease Special risk groups Surveillance 2026 Open Forum Infectious Diseases 2026;13:ofag275. doi: 10.1093/ofid/ofag275