Analysis of bovine cysticercosis in the state of Goiás, Brazil and economical losses for beef farms

Abstract

S U M M A R YThis study aimed to assess the prevalence and spatial distribution of bovine cysticercosis in the state of Goiás, Brazil; to verify its association with epidemiological variables, and to establish the economical losses for beef farms. A set of 23 255 979 bovines from 246 municipalities were slaughtered from 2007 through 2014. The prevalence of bovine cysticercosis was 0·53% [95% confidence interval (95% CI) 0·5295-0·5354]. The Central mesoregion showed a higher risk [odds ratio (OR) = 4·44; 95% CI 4·2936-4·5895] for detecting infected animals with cysticerci compared with those raised at North and Northeast mesoregion (OR = 1·02 and OR = 1·02). The microregion of Goiânia had a higher risk for bovine cysticercosis occurrence (OR = 11·05, 95% CI 10·6933-11·4099) compared with the microregion of São Miguel do Araguaia (OR = 1). None of the epidemiological variables evaluated in this study was significantly associated (P > 0·05) with bovine cysticercosis prevalence.In conclusion, the prevalence of bovine cysticercosis in the state of Goiás, Brazil, was 0·53% and some mesoregions and microregions presented a higher risk for its occurrence. The economical losses due to its occurrence during the period ranged from US$9 260 728·57 to 11 313 816·67. These results highlighted the needs of adopting prophylactic measures and the development of political strategies in specific regions in order to control this zoonose and reduce the economical losses for beef production chain and the costs for public health.

Systematic review and meta-analysis of bovine cysticercosis in Brazil: current knowledge and way forward

“…From these articles, we identified two articles [11,26] describing BCC prevalence in several Brazilian states, covering a long period and including a large sample size. In addition, we found 12 articles containing information about the spatial distribution of BCC inside/within the states (Table 1), 13 articles describing risk factors or variables associated with BCC occurrence ( Table 2) and 4 describing the economic burden of BCC [7,22,28,30]. Furthermore, a set of 10 studies performed in Brazil were also included, regarding at least one aspect presented in discussion section, such as efficacy of chemical treatment (n = 1) [62], preferential infection sites (n = 2) [63,64], development of serological tests (n = 4) [65][66][67][68] and measures for BCC control (n = 3) [69][70][71].…”

“…BCC leading to reduced carcass value or total carcass condemnation at slaughter, results in important economic losses for the Brazilian beef sector. Four articles presented data about the economic burden [7,22,29,30].…”

“…such as: (i) in Minas Gerais State, where farmers had economic losses of USD 537,526.80 due to the detection of 4243 infected bovines from 2009 to 2016 [30]; (ii) states of Minas Gerais, São Paulo, Mato Grosso and Mato Grosso do Sul, where a group of farmers delivering animals to a single slaughterhouse lost USD 312,194.52 during one year[7]; and (iii) in Goiás State, where farmers had economic losses ranging from USD 9,260,728.57 to 11,313,816.67 from 2007 to 2014[22].…”