Tropical vaccines (IMAGE) PNAS Nexus Caption Mortality among vaccine allocations that reserve the largest portion of vaccines for the 10–19 age group (blue) or two oldest age groups (orange) for vaccine supplies covering 10-90% of the population. No vaccine allocations exist allocating a plurality of vaccines to the 60–69 or 70+ age groups when vaccine supply exceeds 40%. Credit Servadio et al Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.