[Demographics of war: mortality in Porto Alegre during Guerra dos Farrapos, 1835-1845].

This article presents an analysis of the impacts of the Guerra dos Farrapos (1835-1845) on the mortality of the population of Porto Alegre, drawing primarily on baptism and death records, comparing the periods before and after the conflict, ranging from 1825 to 1854. Anomalies can be noted in the first five years of the war, when the city was under siege from the rebels. The results, based on a calculation of infant mortality and other indicators, show not only that there were supply difficulties and deteriorated sanitary conditions, but also that mortality levels surged in response to a scarlet fever epidemic, which hit free and enslaved children particularly hard.