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Congresso Brasileiro de Microbiologia 2023
 		Resumo: 429-1

429-1

A SPATIAL-TEMPORAL ANALYSIS OF BOVINE BRUCELLOSIS CASES, IN MINAS GERAIS STATE, BRAZIL, FROM 2011 TO 2018

Autores:
Anna Cecilia Trolesi Reis Borges Costa (UFLA - Universidade Federal de Lavras) ; Suman Bhowmick (UIUC - University of Illinois Urbana-Champaign) ; James F. Lowe (UIUC - University of Illinois Urbana-Champaign) ; Andrey Pereira Lage (UFMG - Universidade Federal de Minas Gerais) ; Luciana Faria de Oliveira (IMA - Instituto Mineiro de Agropecuária) ; Elaine Maria Seles Dorneles (UFLA - Universidade Federal de Lavras)

Resumo:
Our study explores the patterns of bovine brucellosis dissemination in Minas Gerais state, Brazil, by examining data of passive surveillance of bovine brucellosis cases from Instituto Mineiro de Agropecuaria (IMA) (Animal Health Authority), as well as cattle population and bovine brucellosis testing, from 2011 to 2018, by means of a spatial-temporal analysis. We plotted cases, population and testing distribution and performed spatial autocorrelation (Moran’s I test) and Local Indicators Spatial Autocorrelation (LISA) analyzes. Moreover, we assessed the correlation of spatial distribution and the tested data (brucellosis cases, cattle population, and brucellosis testing) by Lee’s test. Our results showed that bovine brucellosis cases were mainly on the Triângulo Mineiro, Alto Parnaíba and Northwest regions, which reported cases in all analyzed years (2011 to 2018). Cattle population was concentrated in the same regions as bovine brucellosis cases and tests were observed/performed. Moran’s I test results of the cases data showed significative results of autocorrelation in 2011, 2015 and 2018 (p-value < 0.05), and from 2011 to 2018 the population and testing data were also significative in the Moran’s I test (p-value < 0.00). The results of clusters analysis (LISA) of cases have shown clusters mainly in the Triângulo Mineiro, Alto Parnaíba, Northwest and South regions in 2011, 2015 and 2018. The local clusters for cattle population and brucellosis testing were also observed in the same regions as bovine brucellosis cases in all years (2011 to 2018). The correlation results between clusters (Lee’s test) were 0.22 (p-value:0.000) in 2011, 0.15 (p-value:0.000) in 2015 and 0.43 (p-value:0.000) in 2018 between cases and population and testing and cases were 0.25 (p-value:0.000) in 2011, 0.14 (p-value:0.000) in 2015 and 0.38 (p-value:0.000) in 2018. Therefore, our results showed that brucellosis cases are distributed together with cattle population and brucellosis testing data, indicating that brucellosis in cattle in Minas Gerais state is being identified where there is more animals and where more tests are performed, Brazil.

Palavras-chave:
 Brucella abortus, epidemiology, GIS, “LISA test”, “Lee’s test”


Agência de fomento:
: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG).