Search Results - "Humphrey, T.J."

Campylobacter spp. contamination of chicken carcasses during processing in relation to flock colonisation by Allen, V.M., Bull, S.A., Corry, J.E.L., Domingue, G., Jørgensen, F., Frost, J.A., Whyte, R., Gonzalez, A., Elviss, N., Humphrey, T.J.

“…The presence and numbers of campylobacters on chicken carcasses from 26 slaughter groups, originating from 22 single-house flocks and processed in four UK…”
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Prevalence and numbers of Salmonella and Campylobacter spp. on raw, whole chickens in relation to sampling methods by Jørgensen, F, Bailey, R, Williams, S, Henderson, P, Wareing, D.R.A, Bolton, F.J, Frost, J.A, Ward, L, Humphrey, T.J

“…Salmonella and Campylobacter continue to be major foodborne pathogens and raw poultry is considered to be an important source of these bacteria. In this study,…”
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Risk factors for Campylobacter colonisation during rearing of broiler flocks in Great Britain by Ellis-Iversen, J., Jorgensen, F., Bull, S., Powell, L., Cook, A.J., Humphrey, T.J.

“…We investigated the associations between Campylobacter colonisation and management practices and farm characteristics in 603 housed broiler batches originating…”
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Achieving hygiene in the domestic kitchen: the effectiveness of commonly used cleaning procedures by Cogan, T.A, Slader, J, Bloomfield, S.F, Humphrey, T.J

“…Aims: To quantify the transmission of Salmonella and Campylobacter to hands, cloths, and hand- and food-contact surfaces during the preparation of raw poultry…”
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Comparison of three enrichment media for the isolation of Campylobacter spp. from foods by Baylis, C.L, MacPhee, S, Martin, K.W, Humphrey, T.J, Betts, R.P

“…Aim: This study compared the performance of three Campylobacter enrichment broths: Bolton broth (BB), Campylobacter Enrichment broth (CEB) and Preston broth…”
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Effects of repeated cycles of acid challenge and growth on the phenotype and virulence of Salmonella enterica by Karatzas, K.A.G, Hocking, P.M, Jørgensen, F, Mattick, K, Leach, S, Humphrey, T.J

“…The aim of the study was to investigate how stresses like low pH, which may be encountered in farms or food preparation premises, shape populations of…”
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Sub-clinical infection with Salmonella in chickens differentially affects behaviour and welfare in three inbred strains by Toscano, M.J, Sait, L, Jorgensen, F, Nicol, C.J, Powers, C, Smith, A.L, Bailey, M, Humphrey, T.J

“…1. Much evidence exists detailing how animals respond to pathogen challenge, yet information explaining how the various behavioural, immunological, and…”
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use of an automated growth analyser to measure recovery times of single heat-injured Salmonella cells by Stephens, P.J, Joynson, J.A, Davies, K.W, Holbrook, R, Lappin-Scott, H.M, Humphrey, T.J

“…A new approach to the study of recovery times of single heat-injured Salmonella cells is described. It comprises the generation of a standard heat-injured…”
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Effect of sunlight on the survival of Salmonella on surfaces by Nyeleti, C, Cogan, T.A, Humphrey, T.J

“…Aims:  To investigate the effect of simulated full‐spectrum tropical sunlight on the survival of Salmonella in droplets on surfaces. Materials and Results: …”
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The rise and fall of Salmonella Enteritidis in the UK by Cogan, T.A., Humphrey, T.J.

“…After rising in the early 1980s, the number of recorded human cases of Salmonella enterica subsp. enterica in the UK has fallen in the last 5 years, with a…”
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Campylobacter jejuni: Some Aspects of Epidemiology, Detection and Control by Humphrey, T.J

“…Describes the epidemiology of campylobacter enteritis in developed countries, including milk-borne infection, contamination of poultry meat and intervention…”
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SulA‐induced filamentation in Salmonella enterica serovar Typhimurium: effects on SPI‐1 expression and epithelial infection by Humphrey, S., MacVicar, T., Stevenson, A., Roberts, M., Humphrey, T.J., Jepson, M.A.

“…Aims:  Salmonella enterica serovar Typhimurium is capable of adopting a filamentous phenotype in response to damage. How this adaptive response affects…”
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SulA-induced filamentation in Salmonella enterica serovar Typhimurium: effects on SPI-1 expression and epithelial infection: SulA-induced filamentation in Salmonella by Humphrey, S., MacVicar, T., Stevenson, A., Roberts, M., Humphrey, T.J., Jepson, M.A.

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An appraisal of the efficacy of pre-enrichment for the isolation of Campylobacter jejuni from water and food by Humphrey, T J

“…Cells of Campylobacter jejuni exposed to heating or freezing were progressively less able to grow at 43 degrees C, particularly on selective media. This…”
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Survival of Escherichia coli O157 in soil protozoan: implications for disease by Barker, J, Humphrey, T.J, Brown, M.W.R

“…Intra-protozoal growth of bacterial pathogens has been associated with increased environmental survival, virulence and resistance to biocides and antibiotics…”
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An assessment of the microbiological risks involved with egg washing under commercial conditions by Hutchison, M L, Gittins, J, Sparks, A Walker N, Humphrey, T J, Burton, C, Moore, A

“…The potential benefits of washing eggs is offset by a historical perception in the European Union that wetted eggs are prone to spoilage and water loss. This…”
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Methods for the detection of thermotolerant campylobacters in foods: results of an inter-laboratory study by Scotter, S L, Humphrey, T J, Henley, A

“…An inter-laboratory comparison of three methods for the detection of thermotolerant campylobacters is described. One of two proposed by the International…”
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Microbiological and observational analysis of cross contamination risks during domestic food preparation by Redmond, Elizabeth C, Griffith, Christopher J, Slader, Jenny, Humphrey, Tom J

“…The use of an observational approach in conjunction with isolation techniques for campylobacter and salmonella detection has facilitated a detailed evaluation…”
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Contamination of egg shell and contents with Salmonella enteritidis: a review by Humphrey, T J

“…Salmonella enteritidis can contaminate the contents of clean, intact shell eggs as a result of infections of the reproductive tissue of laying hens. The…”
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Pathotyping of Salmonella enterica by analysis of single-nucleotide polymorphisms in cyaA and flanking 23S ribosomal sequences by Morales, Cesar A, Musgrove, Michael, Humphrey, T.J, Cates, Carolyn, Gast, Richard, Guard-Bouldin, J

“…The egg-contaminating phenotype of Salmonella enterica serotype Enteritidis was linked to single-nucleotide polymorphisms (SNPs) occurring in cyaA, which…”
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