Abstract
Objective: Describe and analyze the yellow fever vaccination situation in the States of the Northern Region of Brazil, namely Tocantins, Pará, Amapá, Roraima, Amazonas, Acre, and Rondônia, during the period from 2010 to 2019. Methods: This is an observational, cross-sectional, descriptive and analytical study. Data were obtained from public records on the DATASUS website. The data obtained were analyzed using descriptive statistics using the Statistica 7.0 software. The Tukey test was applied in case of statistical significance between the means (p<0.05). Results: Practically all states showed a drop in the number of doses of yellow fever vaccine applied in the last two years, with the exception of Roraima, which showed a small increase in the last year analyzed, 2019. The municipalities that most vaccinated were: São Francisco do Guaporé (RO); Plácido de Castro (AC); Careiro da Várzea (AM); Caroebe (RR); Piçarra (PA); Cutias (AP); e Talismã (TO). Conclusion: This study signaled the drop in yellow fever vaccination in several states in the North Region during the period analyzed, as well as the need for epidemiological studies on the subject, thus aiming to intensify prevention measures aimed at vaccinating the population in general.