Within-group contact of cattle in dairy barns and the implications for disease transmission

Kleinlützum, Dina; Weaver, G. B.; Schley, David

doi:10.1016/j.rvsc.2013.06.006

Cited by 10 publications

(5 citation statements)

References 21 publications

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“…We assume homogeneous contamination in each area. This is supported by evidence from a contact study that there is a high level of spread of contaminants [34]. For example, faecal matter from a single cow-pat was detected on 80 ± 4% of cattle in a given group 12 hours later.…”

mentioning

confidence: 66%

Inferring transmission routes for foot-and-mouth disease virus within a cattle herd using approximate Bayesian computation

Ellis

Brown

Colenutt

et al. 2022

Preprint

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To control an outbreak of an infectious disease it is essential to understand the different routes of transmission and how they contribute to the overall spread of the pathogen. With this information, policy makers can choose the most efficient methods of detection and control during an outbreak. Here we demonstrate a method for assessing the contribution of different routes of transmission using approximate Bayesian computation with sequential Monte Carlo sampling (ABC-SMC). We apply this to infer parameters of an individual based model of within-herd transmission of foot-and-mouth disease virus (FMDV), incorporating transmission through direct contact and via environmental contamination. Additionally, we use ABC-SMC for model selection to assess the plausibility of either transmission route alone being responsible for all infections. We show that direct transmission likely contributes the majority of infections during an outbreak of FMD but there is an accumulation of environmental contamination that can cause infections within a farm and also have the potential to spread between farms via fomites.

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confidence: 66%

Inferring transmission routes for foot-and-mouth disease virus within a cattle herd using approximate Bayesian computation

Ellis

Brown

Colenutt

et al. 2022

Preprint

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“…Carefully selecting antibiotic therapies that are used together may also help fight the spread of AR, as antagonistic interactions between certain antibiotics can be used to counteract the development of drug resistance (Baym et al, 2016). Other farm-level initiatives include disease prevention through improved animal husbandry (Kleinlützum et al, 2013), housing, and ventilation (Lorenz et al, 2011a;Phillips et al, 2013), and careful management of transition (pre-to postcalving) cows (Lorenz et al, 2011b;Love et al, 2016 Senate, 2015;Maryland Senate, 2017) also require more prudent on-farm antibiotic usage. The drug approval process has also been tightened and now requires AR and environmental impact assessments, such as residue excretion rate and environmental mobility testing .…”

Section: Use Of Antibiotics On Us Dairy Operationsmentioning

confidence: 99%

Invited review: Fate of antibiotic residues, antibiotic-resistant bacteria, and antibiotic resistance genes in US dairy manure management systems

Oliver

Gooch

Lansing

et al. 2020

Journal of Dairy Science

123

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United States dairy operations use antibiotics (primarily β-lactams and tetracyclines) to manage bacterial diseases in dairy cattle. Antibiotic residues, antibiotic-resistant bacteria (ARB), and antibiotic resistance genes (ARG) can be found in dairy manure and may contribute to the spread of antibiotic resistance (AR). Although β-lactam residues are rarely detected in dairy manure, tetracycline residues are common and perhaps persistent. Generally, <15% of bacterial pathogen dairy manure isolates are ARB, although resistance to some antibiotics (e.g., tetracycline) can be higher. Based on available data, the prevalence of medically important ARB on dairy operations is generally static or may be declining for antibiotic-resistant Staphylococcus spp. Over 60 ARG can be found in dairy manure (including β-lactam and tetracycline resistance genes), although correlations with antibiotic usage, residues, and ARB have been inconsistent, possibly because of sampling and analytical limitations. Manure treatment systems have not been specifically designed to mitigate AR, though certain treatments have some capacity to do so. Generally, well-managed aerobic compost treatments reaching higher peak temperatures (>60°C) are more effective at mitigating antibiotic residues than static stockpiles, although this depends on the antibiotic residue and their interactions. Similarly, thermophilic anaerobic digesters operating under steady-state conditions may be more effective at mitigating antibiotic residues than mesophilic or irregularly operated digesters or anaerobic lagoons. The number of ARB may decline during composting and digestion or be enriched as the bacterial communities in these systems shift, affecting relative ARG abundance or acquire ARG during treatment. Antibiotic resistance genes often persist through these systems, although optimal management and higher operating temperature may facilitate their mitigation. Less is known about other manure treatments, although separation technologies may be unique in their ability to partition antibiotic residues based on sorption and solubility properties. Needed areas of study include determining natural levels of AR in dairy systems, standardizing and optimizing analytical techniques, and more studies of operating on-farm systems, so that treatment system performance and actual human health risks associated with levels of antibiotic residues, ARB, and ARG found in dairy manure can be accurately assessed.

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“…While the proportion of antibiotics used by dairy operations (Van Boeckel et al, 2015) and their exact contribution to AR is uncertain (Oliver et al, 2011;Van Boeckel et al, 2015), links exist between AR in cattle, environmental systems (Pruden et al, 2012;Casey et al, 2013) and clinical infections (HHS/FDA/CVM, 2012; Groot & van't Hooft, 2016;Madec et al, 2017). Dairy farmers are using improved diagnostics (Lago et al, 2011;Vasquez et al, 2017), herd management (Lorenz et al, 2011b;Kleinlützum et al, 2013;Love et al, 2016), and housing (Lorenz et al, 2011a;Phillips et al, 2013) to reduce antibiotic usage. However, even prudent herd management and antibiotic administration can result in the detection of antibiotic residues (Ince et al, 2013;Ray et al, 2014), antibiotic resistant bacteria (ARB;Cummings et al, 2013;NARMS, 2019), and antibiotic resistant genes (ARGs) in dairy cattle manure (Chambers et al, 2015;Haley et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Although the proportion of antibiotics used by dairy operations (Van Boeckel et al., 2015) and their exact contribution to AR is uncertain (Oliver, Murinda, & Jayarao, 2011; Van Boeckel et al., 2015), links exist between AR in cattle, environmental systems (Casey, Curriero, Cosgrove, Nachman, & Schwartz, 2013; Pruden, Arabi, & Storteboom, 2012), and clinical infections (Groot & van't Hooft, 2016; HHS, FDA, & CVM, 2012; Madec, Haenni, Nordmann, & Poirel, 2017). Dairy farmers are using improved diagnostics (Lago, Godden, Bey, Ruegg, & Leslie, 2011; Vasquez, Nydam, Capel, Eicker, & Virkler, 2017), herd management (Kleinlützum, Weaver, & Schley, 2013; Lorenz, Mee, Earley, & More, 2011; Love et al., 2016), and housing (Lorenz, Earley, et al., 2011; Phillips et al., 2013) to reduce antibiotic usage. However, even prudent herd management and antibiotic administration can result in the detection of antibiotic residues (Ince, Coban, Turker, Ertekin, & Ince, 2013; Ray, Knowlton, Shang, & Xia, 2014), antibiotic‐resistant bacteria (ARB; Cummings, Perkins, Khatibzadeh, Warnick, & Altier, 2013; NARMS, 2019), and antibiotic resistant genes (ARGs) in dairy cattle manure (Chambers et al., 2015; Haley, Kim, Cao, Karns, & Van Kessel, 2017).…”

Section: Introductionmentioning

confidence: 99%

On‐farm screw press and rotary drum treatment of dairy manure‐associated antibiotic residues and resistance

et al. 2021

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Core Ideas  Only sulfadimethoxine and oxytetracycline residues were detected in manure samples.  Most antibiotic resistance genes (ARGs) partitioned with separated manure liquids.  tetO was primarily associated with separated manure solids (SS).  A rotary drum composter (RD) treated SS from antibiotic-treated cattle.  The RD significantly reduced all four ARGs and oxytetracycline residues.

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Within-group contact of cattle in dairy barns and the implications for disease transmission

Cited by 10 publications

References 21 publications

Inferring transmission routes for foot-and-mouth disease virus within a cattle herd using approximate Bayesian computation

Inferring transmission routes for foot-and-mouth disease virus within a cattle herd using approximate Bayesian computation

Invited review: Fate of antibiotic residues, antibiotic-resistant bacteria, and antibiotic resistance genes in US dairy manure management systems

On‐farm screw press and rotary drum treatment of dairy manure‐associated antibiotic residues and resistance

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