Fig. 1From: Estimating the contribution of different age strata to vaccine serotype pneumococcal transmission in the pre vaccine era: a modelling studyDemographic and epidemiological characteristic of the four study sites Kilifi, England and Wales (EW), Nha Trang (NT) and Finland (Fin). The top panel shows the cumulative age distributions within each setting. The middle panel shows the cumulative distribution of carriers in the population. The bottom panel compares the country-specific probabilities of physical contact of two specific individuals each standardised by the respective country specific average. They grey-coloured tiles indicate no reported contactsBack to article page