A longitudinal study of campylobacter infection of broiler flocks in Great Britain

Evans, S. J.; Sayers, A. R.

doi:10.1016/s0167-5877(00)00143-4

Cited by 256 publications

(252 citation statements)

References 37 publications

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“…Newly hatched chicks appear to be free of campylobacters. In Europe this negativity persists until at least 10 days of age (the so-called lag phase), and most flocks become infected only 2 to 3 weeks after the placement of chicks into a broiler house (26,53). Colonized chickens usually show no observable clinical symptoms of infection even when young chicks are exposed to high doses under experimental conditions.…”

Section: Physiology and Ecology Of C Jejuni Colonizing Broilersmentioning

confidence: 99%

“…Such studies have generally involved a questionnaire-based approach coupled with detection of C. jejuni flock positivity (7,26,40,50,76). With these data, univariate analyses of farm management data are undertaken, followed by logistic regression analysis to identify risk-increasing and risk-reducing factors.…”

Section: Sources Of Poultry Colonizationmentioning

confidence: 99%

“…Most studies found that the water source was a low-risk factor (6,50,53), but this is disputed in other studies (73). Intervention studies have provided a clearer indication that the addition of sanitizers can significantly reduce either the probability that a flock will become positive (26,54,57) or the proportion of positive birds (73). Although the levels of chlorination normally found in potable waters would normally be considered lethal to C. jejuni, there is preliminary evidence that water-borne protozoa, such as Tetrahymena pyriformis, can act as reservoirs for C. jejuni in broiler house water systems.…”

Section: Sources Of Poultry Colonizationmentioning

confidence: 99%

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Sources of Campylobacter Colonization in Broiler Chickens

Newell¹,

Fearnley²

2003

Appl Environ Microbiol

533

455

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Section: Physiology and Ecology Of C Jejuni Colonizing Broilersmentioning

confidence: 99%

Section: Sources Of Poultry Colonizationmentioning

confidence: 99%

Section: Sources Of Poultry Colonizationmentioning

confidence: 99%

See 1 more Smart Citation

Sources of Campylobacter Colonization in Broiler Chickens

Newell¹,

Fearnley²

2003

Appl Environ Microbiol

533

455

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“…Once a broiler flock becomes infected, Campylobacter spreads rapidly. Some studies indicate that flock infection reaches more than 40% of flocks by the time the chicks are 4 weeks old and greater than 90% by 7 weeks (Evans and Sayers, 2000). Other studies suggest infection rates reach nearly 100% within two to three weeks (Newell and Wagenaar, 2000;Newell and Fearnley, 2003).…”

Section: Ubiquity Of Campylobacter In Chickenmentioning

confidence: 99%

Impact of Rurality, Broiler Operations, and Community Socioeconomic Factors on the Risk of Campylobacteriosis in Maryland

Pasturel¹,

Cruz‐Cano²,

Goldstein³

et al. 2013

Am J Public Health

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The combined impact of community-level environmental and socioeconomic factors on the risk of campylobacteriosis were evaluated.Campylobacter case data (2002-2010, n=3,694) In zip codes that were 100% rural, incidence rates of campylobacteriosis were 6 times (IRR=6.18; 95%CI=3.19-11.97) that of urban zip codes. In zip codes with broiler chicken operations, incidence rates were 1.45 times that of zip codes without broilers (IRR=1.45, 95%CI=1.34-1.58). Higher rates were also observed for zip codes that were predominantly white and had high median incomes. For my daughters, whose cheerful patience and boundless appreciation have shown me the wisdom that endurance can reveal.Fall down seven times, stand up eight.iii

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“…Several studies have indicated that applied hygienic practices and barriers as well as the type of the ventilation system can be associated with the risk of Campylobacter infection of broiler flocks (Van de Giessen et al, 1998;Evans and Sayers, 2000;Barrios et al, 2006;Hald et al, 2007;McDowell et al, 2008;Hansson et al, 2010). The analyses of the EU-wide baseline survey on Campylobacter in broiler batches and carcases indicated that the previous thinning of the flock, the age of the broilers and the quarter of sampling (3-month period) were associated with Campylobacter-colonised broiler batches (EFSA, 2011c).…”

Section: Risk and Protective Factorsmentioning

confidence: 99%

Technical specifications on harmonised epidemiological indicators for biological hazards to be covered by meat inspection of poultry

2012

EFS2

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In this report, harmonised epidemiological indicators are proposed for food-borne biological hazards to public health that are related to poultry and meat thereof and that can be addressed within meat inspection. These hazards include Salmonella, Campylobacter and extended-spectrum/AmpC beta-lactamase producing Escherichia coli as well as generic E. coli as an indicator for process hygiene. An epidemiological indicator is defined as the prevalence or concentration of the hazard at a certain stage of the food chain or an indirect measure of the hazard that correlates to human health risk caused by the hazard. The indicators can be used by the European Commission and the Member States to consider when adaptations in meat inspection methods may be relevant and to carry out risk analysis to support such decisions. It is foreseen that the indicators will be used in the integrated food safety assurance system for poultry meat outlined in the EFSA Scientific Opinion, particularly to help categorise farms/flock and slaughterhouses according to the risk related to the hazards and process hygiene as well as setting appropriate targets. Depending on the purpose and the epidemiological situation, risk managers should decide on the most appropriate indicator(s) to use, either alone or in combination, at national, regional, slaughterhouse or farm/flock level. It is recommended that risk managers should define the harmonised requirements for the controlled housing conditions of farms and the requirements for food chain information. Member States are invited to organise training regarding the implementation of the indicators and the reporting of data generated by the implementation in accordance with Directive 2003/99/EC. The proposed indicators should be regularly reviewed in light of new information and the data generated by their implementation.

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A longitudinal study of campylobacter infection of broiler flocks in Great Britain

Cited by 256 publications

References 37 publications

Sources of Campylobacter Colonization in Broiler Chickens

Sources of Campylobacter Colonization in Broiler Chickens

Impact of Rurality, Broiler Operations, and Community Socioeconomic Factors on the Risk of Campylobacteriosis in Maryland

Technical specifications on harmonised epidemiological indicators for biological hazards to be covered by meat inspection of poultry

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