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Abstract
The 7-valent pneumococcal conjugate vaccine (PCV-7) has proved to be highly effective against invasive pneumococcal disease and has also provided some protection against all-cause pneumonia and acute otitis media. The objective of this study was to evaluate the projected health benefits, costs and cost-effectiveness of vaccination with the 7-valent conjugated pneumococcal vaccine compared with no vaccination, in all infants in Sweden, taking herd immunity into account. A Markov model was used and a hypothetical birth cohort was simulated for a lifelong perspective. The results show that vaccination of 1 cohort could potentially prevent 9 cases of pneumococcal meningitis, 22 cases of pneumococcal septicaemia, 509 cases of hospitalized pneumonia, 7812 cases of acute otitis media, and 2.7 fatalities, among children 0–4 y of age and 6 episodes of pneumococcal meningitis and 167 cases of pneumococcal septicaemia among adults. The incremental cost per QALY and LY gained was estimated to €29,200 and €51,400, respectively. When herd immunity was accounted for, the cost per QALY and LY gained was estimated to €5500 and €6600, respectively. Thus, the health benefits of a national vaccination programmeme can be achieved within a ‘moderate’ or ‘low’ cost per QALY gained.