Risk factors for bovine tuberculosis persistence in beef herds of Southern and Central Spain

Guta, Sintayehu; Casal, Jordi Domènech; Garcia-Saenz, Ariadna; Sáez, José Luis; Pacios, Alberto; García, P. Martínez; Napp, Sebastián; Allepuz, Alberto

doi:10.1016/j.prevetmed.2014.04.007

Cited by 15 publications

(21 citation statements)

References 20 publications

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“…A case-control study in Argentina found no increased risk in herds feeding raw milk, but did find a higher risk in herds where weaning had been delayed for 4 days, which could be attributed to either drinking infected colostrum or increased exposure to an infected dam [79]. In Spain, bTB incidents in herds where calves were fed replacement milk from test-positive dams were more likely to be persistent but this verged on significance [92].…”

Section: Farm Managementmentioning

confidence: 99%

A review of risk factors for bovine tuberculosis infection in cattle in the UK and Ireland

et al. 2016

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Bovine tuberculosis (bTB) is an important disease of cattle caused by infection with Mycobacterium bovis, a pathogen that may be extremely difficult to eradicate in the presence of a true wildlife reservoir. Our objective was to identify and review relevant literature and provide a succinct summary of current knowledge of risk factors for transmission of infection of cattle. Search strings were developed to identify publications from electronic databases to February 2015. Abstracts of 4255 papers identified were reviewed by three reviewers to determine whether the entire article was likely to contain relevant information. Risk factors could be broadly grouped as follows: animal (including nutrition and genetics), herd (including bTB and testing history), environment, wildlife and social factors. Many risk factors are inter-related and study designs often do not enable differentiation between cause and consequence of infection. Despite differences in study design and location, some risk factors are consistently identified, e.g. herd size, bTB history, presence of infected wildlife, whereas the evidence for others is less consistent and coherent, e.g. nutrition, local cattle movements. We have identified knowledge gaps where further research may result in an improved understanding of bTB transmission dynamics. The application of targeted, multifactorial disease control regimens that address a range of risk factors simultaneously is likely to be a key to effective, evidence-informed control strategies.

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Section: Farm Managementmentioning

confidence: 99%

A review of risk factors for bovine tuberculosis infection in cattle in the UK and Ireland

et al. 2016

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“…The community composition, TB prevalence rate, herd dimension, cattle movements and interaction with wildlife reservoirs using as proxy the number of and distance to aggregation points (e.g. feeding and watering) are other variables included in the majority of within‐herd transmission models (Álvarez et al, 2014; Guta et al, 2014).…”

Section: Drivers Of Animal Tb Heterogeneitymentioning

confidence: 99%

Animal tuberculosis: impact of disease heterogeneity in transmission, diagnosis, and control

Pereira

Reis

Ramos

et al. 2020

Transbound Emerg Dis

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Animal tuberculosis (TB) in terrestrial mammals is mainly caused by Mycobacterium bovis. This pathogen is adapted to a wide range of host species, representing a threat to livestock, wildlife and human health. Disease heterogeneity is a hallmark of multi‐host TB and a challenge for control. Drivers of animal TB heterogeneity are very diverse and may act at the level of the causative agent, the host species, the interface between mycobacteria and the host, community of hosts, the environment and even policy behind control programmes. In this paper, we examine the drivers that seem to contribute to this phenomenon. We begin by reviewing evidence accumulated to date supporting the consensus that a complex range of genetic, biological and socio‐environmental factors contribute to the establishment and maintenance of animal TB, setting the grounds for heterogeneity. We then highlight the complex interplay between individual, species‐specific and community protective factors with risk/maintenance variables that include animal movements and densities, co‐infection and super‐shedders. We finally consider how current interventions should seek to consider and explore heterogeneity in order to tackle potential limitations for diagnosis and control programmes, simultaneously increasing their efficacy.

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“…Many studies were conducted to identify, recommend and prioritize the BSM to be implemented in dairy, beef or veal calves farms (Mee, Geraghty, O’Neill, & More, ). Previous works highlighted the risk ratios of several infectious diseases related to the non‐implementation of BSM to justify and promote their implementation (Agger, Priou, Huda, & Aagaard, ; Bessell, Orton, White, Hutchings, & Kao, ; Bruun, Ersbøll, & Alban, ; Dal Pozzo et al, ; Giuliodori et al, ; Guta et al, ; Holzhauer, Hardenberg, Bartels, & Frankena, ; Kuster et al, ; Nusinovici, Frössling, Widgren, Beaudeau, & Lindberg, ; Ryan, Leonard, O’Grady, Doherty, & More, ). Yet, these studies are usually measure‐ or disease‐specific and lack a more holistic approach regarding the possible benefits of BS on health and production.…”

Section: Introductionmentioning

confidence: 99%

Pilot study assessing the possible benefits of a higher level of implementation of biosecurity measures on farm productivity and health status in Belgian cattle farms

Renault

Lomba²,

Delooz³

et al. 2019

Transbound Emerg Dis

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Over the last few years, the interest of decision‐makers and control agencies in biosecurity (BS), aiming at preventing and controlling the introduction and spread of infectious diseases, has considerably increased. Nevertheless, previous studies highlighted a low implementation level of biosecurity measures (BSM), especially in cattle farms; different reasons were identified such as perceived costs, utility, importance, increased workload and lack of knowledge. In order to convince cattle farmers to adopt BSM, it is necessary to gather more information and evidence on their cost‐effectiveness and their importance or utility in terms of disease prevention and control. The objectives of this study were to determine whether the farm or farmers’ profile correlated with the implementation level of BSM and if there was a positive correlation between the BSM implementation and the farm production and health parameters. Data were collected through face‐to‐face interviews conducted in 100 Belgian farms as part of a stratified and randomized survey. The Regional Animal Health Services provided the farm health status and production data. A general BS score and five sub‐scores related to the five BS compartments (bio‐exclusion, bio‐compartmentation, bio‐containment, bio‐prevention and bio‐preservation) were calculated for each farm based on the implementation level of different BSM grouped in 16 domains. The study highlighted a significant and negative correlation between the mortality rates in adult cattle (over 24 months of age) and young calves (aged 0–7 days) and different BS compartment scores. The study also demonstrated that the farms having a higher general BS score were indeed more likely to have a BVD‐free status. These evidence‐based findings are encouraging as they demonstrate the benefits of implementing BSM and could promote their adoption by farmers.

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Risk factors for bovine tuberculosis persistence in beef herds of Southern and Central Spain

Cited by 15 publications

References 20 publications

A review of risk factors for bovine tuberculosis infection in cattle in the UK and Ireland

A review of risk factors for bovine tuberculosis infection in cattle in the UK and Ireland

Animal tuberculosis: impact of disease heterogeneity in transmission, diagnosis, and control

Pilot study assessing the possible benefits of a higher level of implementation of biosecurity measures on farm productivity and health status in Belgian cattle farms

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