“…In England and Wales, the overall incidence of IPD is 8.6 per 100,000 population (16), with the highest burden among the very young and elderly, an excess of 30 per 100,000 (16,32,37). In Scotland, the overall incidence of IPD is 11 cases per 100,000 population, although the incidence rises to 51 cases per 100,000 in those aged 1 year and 45 cases per 100,000 in those aged over 65 years (24). The 10 most common pneumococcal serogroups associated with IPD in England and Wales are 14, 9, 6, 19, 23, 8, 1, 4, 18, and 7 (16), while the most common serotypes in Scotland are 14, 8, 9V, 1, 3, 22F, 23F, 6B, 18C, and 19F (30).…”