Infectious disease surveillance in animal movement networks: An approach based on the friendship paradox

Amaku, Marcos; Grisi-Filho, José Henrique Hildebrand; Negreiros, R. L.; Dias, Ricardo Augusto; Ferreira, Fernando; Neto, José Soares Ferreira; Cipullo, Rafael Ishibashi; Marques, Flávio D.; Ossada, Raul

doi:10.1016/j.prevetmed.2015.08.002

Cited by 14 publications

(9 citation statements)

References 35 publications

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“…Hence, an understanding of the characteristics of the network of animal movements may help prevent or control the spread of diseases. In a scenario with no control measures in place, one could assume that the risk of disease spread between farm premises increases as the number of animals moved increases (Amaku et al 2015). Thus, the analysis of animal movement may help identify farm premises with a potentially high risk of infectious disease introduction.…”

Section: Introductionmentioning

confidence: 99%

Cattle trade between and within biomes in the state of Mato Grosso, Brazil

Negreiros¹,

Grisi-Filho

Dias

et al. 2018

Pesq. Vet. Bras.

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The analysis of animal movement patterns may help identify farm premises with a potentially high risk of infectious disease introduction. Farm herd sizes and bovine movement data from 2007 in the state of Mato Grosso, Brazil, were analyzed. There are three different biomes in Mato Grosso: the Amazon, Cerrado, and Pantanal. The analysis of the animal trade between and within biomes would enable characterization of the connections between the biomes and the intensity of the internal trade within each biome. We conducted the following analyses: 1) the concentration of cattle on farm premises in the state and in each biome, 2) the number and relative frequency of cattle moved between biomes, and 3) the most frequent purposes for cattle movements. Twenty percent (20%) of the farm premises had 81.15% of the herd population. Those premises may be important not only for the spread of infectious diseases, but also for the implementation of surveillance and control strategies. Most of the cattle movement was intrastate (97.1%), and internal movements within each biome were predominant (88.6%). A high percentage of movement from the Pantanal was to the Cerrado (48.6%), the biome that received the most cattle for slaughter, fattening and reproduction (62.4%, 56.8%, and 49.1% of all movements for slaughter, fattening, and reproduction, respectively). The primary purposes for cattle trade were fattening (43.5%), slaughter (31.5%), and reproduction (22.7%). Presumably, movements for slaughter has a low risk of disease spread. In contrast, movements for fattening and reproduction purposes (66.2% of all movements) may contribute to an increased risk of the spread of infectious diseases.

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Section: Introductionmentioning

confidence: 99%

Cattle trade between and within biomes in the state of Mato Grosso, Brazil

Negreiros¹,

Grisi-Filho

Dias

et al. 2018

Pesq. Vet. Bras.

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“…It is an important tool for sanitary control, and provides support for the prevention of diseases that affect domestic species of production [18]. Given the relational nature of the information contained in the transit guides, these are readily converted into the attributes that make up a network, where nodes represent the properties of origin and destination, and their edges represent the animal movement that occurs between them [19].…”

Section: Introductionmentioning

confidence: 99%

The Visualization of Cattle Movement Data in The State of Pará in 2016 Through Networks of Animal Transit Graphs and Guides

Aragão¹,

Pontes²,

Gouveia³

et al. 2018

Adv. sci. technol. eng. syst. j.

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Animal movement is inherent in the marketing between the rural productive units, establishing space-time connections between them. The relational nature of such information is kept in the Animal Transit Guides (GTA), a mandatory issuance in Brazil. When evaluating such set of information, this work aimed at characterizing the bovine movement network in the state of Pará through the application of concepts from Social Network and Network Theory analysis. Where the nodes and edges that structure the network are respectively the rural properties and the number of cattle moved between them. The results obtained characterize the bovine movement in the state, which show distinct patterns such as the movement of a great number of animals rambling and a clear seasonality due to commercialization purposes. The evaluation of the network components' modularity also shows the subdivision of the state in four commercial clusters, where the central measures of its components define municipalities of economic and epidemiological interest. The results described herein help in the support of health surveillance and control measures, as well as the adoption of economic strategies and policies.

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“…As discussed by Amaku et al (2015), the survey of the entire animal movement network is not always possible, either because the data are insufficient or because informal trade is significant. Thus, the use of GTAs to characterize the network has potential limitations when the data are insufficient (when the GTA database is incomplete, for example) or informal (not registered) trade is significant.…”

Section: Introductionmentioning

confidence: 99%

Livestock markets play an important role in the cattle movement network in Pernambuco, Brazil

Júnior

Almeida²,

Corrêa

et al. 2017

Braz. J. Vet. Res. Anim. Sci.

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The animal trade is an important risk factor that affects the spread of diseases among animals and herds. The goal of the present study was to characterize the cattle movement network in Pernambuco, Brazil, based on the animal movement permits (Guias de Trânsito Animal; GTAs) from 2012 to 2013, and identify the intensity of the commercial relationship between farm premises. A total of 737,950 GTAs were issued, and the movement of 3,481,185 cattle (1,688,585 in 2012 and 1,792,600 in 2013) was analyzed. Of the moved animals analyzed, 52.57% (1,829,907/3,481,185) were involved in the movement of cattle in or out of livestock markets, indicating that livestock markets played a major role in the network. Approximately 20% of the more-connected premises were responsible for approximately 87% of the movement related to sales and 95% of the movement related to purchases. Considering the important role of livestock markets and the intense cattle trade between farm premises, surveillance, and control measures could be more efficient if targeted to livestock markets and highly connected premises to prevent the spread of infectious diseases. Keywords: Animal movement. Official veterinary service. Network. Epidemiological surveillance. ResumoO comércio de animais é um importante fator de risco para a disseminação de doenças entre animais e rebanhos. O objetivo do presente estudo foi caracterizar a rede de movimentação de bovinos em Pernambuco, com base nas guias de trânsito animal (GTAs) de 2012 a 2013, e identificar a intensidade da relação comercial entre os estabelecimentos. Foram analisadas 737.950 GTAs emitidas, e as movimentações de bovinos totalizaram 3.481.185 animais (1.688.585 em 2012 e 1.792.600 em 2013). Um percentual de 52,57% (1.829.907/3.481.185) das movimentações de bovinos envolveu entrada ou saída de feiras de gado, indicando que as feiras desempenharam um papel importante na rede. Aproximadamente 20% dos estabelecimentos mais conectados foram responsáveis por aproximadamente 87% das movimentações relacionadas às vendas, e 95% das movimentações, relacionadas às compras. Considerando o importante papel das feiras e o intenso comércio de bovinos entre as propriedades, medidas de vigilância e controle podem ser mais eficientes se aplicadas em feiras e estabelecimentos altamente conectados, para prevenir a propagação de doenças infecciosas. Palavras-chave: Trânsito animal. Serviço veterinário oficial. Rede. Vigilância epidemiológica. | 226Braz.

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Infectious disease surveillance in animal movement networks: An approach based on the friendship paradox

Cited by 14 publications

References 35 publications

Cattle trade between and within biomes in the state of Mato Grosso, Brazil

Cattle trade between and within biomes in the state of Mato Grosso, Brazil

The Visualization of Cattle Movement Data in The State of Pará in 2016 Through Networks of Animal Transit Graphs and Guides

Livestock markets play an important role in the cattle movement network in Pernambuco, Brazil

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