Estimating the contribution of different age strata to vaccine serotype pneumococcal transmission in the pre vaccine era: a modelling study. Author(s): Flasche S, Lipsitch M, Ojal J, Pinsent A|Journal: BMC Med|PMID: 32517683| June 2020 Herd protection through interruption of transmission has contributed greatly to the impact of pneumococcal conjugate vaccines (PCVs) and may enable…