Abstract
Objective: To describe the spatio-temporal distribution of Acute Respiratory Infections (ARI) in children under two years of age in a region of Pará. Methods: This is a descriptive cross-sectional study that used as secondary data the Primary Care Information System (SIAB). Data were collected from the health region of Carajás, Pará, between 2005 and 2015, about children under two years old. Data were tabulated and analyzed by descriptive statistics using Tabwin software, developed by the Department of Informatics of the Unified Health System (DATASUS). Subsequently the data were mapped using the Quantum GIS software. Results: 149,459 cases of ARF were recorded in children under two years of age, with an average of 13,587 cases per year. The months of March and April presented the highest monthly averages; 1368.72 cases/month and 1278.63 cases/month and the highest absolute case records 15,056 and 14,065 respectively. Marabá (36,645) and Parauapebas (20,146) were the municipalities that most reported ARI cases. Conclusion: It is concluded that the most endemic municipalities need special attention regarding the cases of ARF in children under 2 years, especially in the winter months.