Issued in 1962, this 15 Lire Vatican City stamp commemorates the global campaign against malaria. The Latin inscription “Populi Omnes Contra Febres Palustres” translates to “All Peoples Against Malaria.” The design features the emblem of Pope Sixtus V (1585–1590), who initiated the draining of the Pontine Marshes near Rome to combat malaria centuries earlier. A small mosquito symbol at the lower left underscores the theme of disease eradication. The issue highlights both faith and science in service of human welfare.