Cross-border malaria drivers and risk factors on the Brazil–Venezuela border between 2016 and 2018

• DOI: 10.1038/s41598-022-09819-0
• Publication Date: 2022-04-11T19:07:52Z
• Authors: Kinley Wangdi; Erica Wetzler; Paola Marchesini; Leopoldo Villegas; Sara Canavati
• Keywords: Male; Science; Incidence; Q; R; Infant, Newborn; 1. No poverty; Infant; Venezuela; Article; Malaria; 3. Good health; 03 medical and health sciences; 0302 clinical medicine; Risk Factors; Child, Preschool; Medicine; Humans; Female; Child; Brazil; Aged

Abstract Globally, cross-border importation of malaria has become a challenge to elimination. The border areas between Brazil and Venezuela have experienced high numbers imported cases due increased population movement migration out Venezuela. This study aimed identify risk factors for delineate hotspots in Roraima, Bolivar, 2016 2018. Data on surveillance from 2018 were obtained national systems: the Brazilian Malaria Epidemiology Surveillance Information System (SIVEP-Malaria), Venezuelan Ministry Health other non-government organizations. A multivariable logistic regression model was used malaria. Spatial autocorrelation incidence explored using Getis-Ord (Gi*) statistics. During period, there 11,270 (24.3%) 4072 (0.7%) Venezuela, respectively. In men 28% less likely be an case compared women (Adjusted Odds Ratio [AOR] = 0.72; 95% confidence interval [CI] 0.665, 0.781). Ages 20–29 30–39 90% (AOR 1.90; CI 1.649, 2.181) 54% 1.54; 1.331, 1.782) more 0–9 year age group, Imported 197 times 197.03; 175.094, 221.712) occur miners than those working agriculture domestic work. aged 10–19 1.75; 1.389, 2.192), 2.48; 1.957, 3.144), 2.29; 1.803, 2.913) at higher being old with older groups having slightly Roraima. Compared workers, tourism, timber fishing workers 6.38; 4.393, 9.254) 7.03; 4.903, 10.092) six seven case. analysis showed along international municipalities Brazil. To achieve elimination, populations hotspot will need targeted intervention strategies tailored occupation, mobility status. Furthermore, all stakeholders, including implementers, policymakers, donors, should support explore introduction novel approaches address these hard-to-reach most cost-effective interventions.