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Garvey P, McKeown P, Kelly P, Cormican M, Anderson W, Flack A, Barron S, De Lappe N, Buckley J, Cosgrove C, Molloy D, O' Connor J, O' Sullivan P, Matthews J, Ward M, Breslin A, O' Sullivan MB, Kelleher K, McNamara A, Foley-Nolan C, Pelly H, Cloak F. Investigation and management of an outbreak of Salmonella Typhimurium DT8 associated with duck eggs, Ireland 2009 to 2011. Euro Surveill 2013; 18:20454. [PMID: 23611032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
Salmonella Typhimurium DT8 was a very rare cause of human illness in Ireland between 2000 and 2008, with only four human isolates from three patients being identified. Over a 19-month period between August 2009 and February 2011, 34 confirmed cases and one probable case of Salmonella Typhimurium DT8 were detected, all of which had an MLVA pattern 2-10-NA-12-212 or a closely related pattern. The epidemiological investigations strongly supported a linkbetween illness and exposure to duck eggs. Moreover, S. Typhimurium with an MLVA pattern indistinguishable (or closely related) to the isolates from human cases, was identified in 22 commercial and backyard duck flocks, twelve of which were linked with known human cases. A range of control measures were taken at farm level, and advice was provided to consumers on the hygienic handling and cooking of duck eggs. Although no definitive link was established with a concurrent duck egg-related outbreak of S. Typhimurium DT8 in the United Kingdom, it seems likely that the two events were related. It may be appropriate for other countries with a tradition of consuming duck eggs to consider the need for measures to reduce the risk of similar outbreaks.
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Affiliation(s)
- P Garvey
- Health Protection Surveillance Centre, Dublin, Ireland.
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Garvey P, McKeown P, Kelly P, Cormican M, Anderson W, Flack A, Barron S, De Lappe N, Buckley J, Cosgrove C, Molloy D, O’Connor J, O’Sullivan P, Matthews J, Ward M, Breslin A, O’Sullivan MB, Kelleher K, McNamara A, Foley-Nolan C, Pelly H, Cloak F, Outbreak control team C. Investigation and management of an outbreak of Salmonella Typhimurium DT8 associated with duck eggs, Ireland 2009 to 2011. Euro Surveill 2013. [DOI: 10.2807/ese.18.16.20454-en] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
>Salmonella Typhimurium DT8 was a very rare cause of human illness in Ireland between 2000 and 2008, with only four human isolates from three patients being identified. Over a 19-month period between August 2009 and February 2011, 34 confirmed cases and one probable case of Salmonella Typhimurium DT8 were detected, all of which had an MLVA pattern 2-10-NA-12-212 or a closely related pattern. The epidemiological investigations strongly supported a link between illness and exposure to duck eggs. Moreover, S. Typhimurium with an MLVA pattern indistinguishable (or closely related) to the isolates from human cases, was identified in 22 commercial and backyard duck flocks, twelve of which were linked with known human cases. A range of control measures were taken at farm level, and advice was provided to consumers on the hygienic handling and cooking of duck eggs. Although no definitive link was established with a concurrent duck egg-related outbreak of S. Typhimurium DT8 in the United Kingdom, it seems likely that the two events were related. It may be appropriate for other countries with a tradition of consuming duck eggs to consider the need for measures to reduce the risk of similar outbreaks.
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Affiliation(s)
- P Garvey
- Health Protection Surveillance Centre, Dublin, Ireland
| | - P McKeown
- Health Protection Surveillance Centre, Dublin, Ireland
| | - P Kelly
- Irish Department of Agriculture, Food and the Marine, Dublin, Ireland
| | - M Cormican
- National Salmonella, Shigella and Listeria Reference Laboratory, Medical Microbiology Department, University Hospital Galway, Galway, Ireland
| | - W Anderson
- Food Safety Authority of Ireland, Dublin, Ireland
| | - A Flack
- Irish Department of Agriculture, Food and the Marine, Dublin, Ireland
| | - S Barron
- Irish Department of Agriculture, Food and the Marine, Dublin, Ireland
| | - N De Lappe
- National Salmonella, Shigella and Listeria Reference Laboratory, Medical Microbiology Department, University Hospital Galway, Galway, Ireland
| | - J Buckley
- Veterinary Department, Cork County Council, Cork, Ireland
| | - C Cosgrove
- Health Service Executive, Communicable Disease Unit of the Environmental Health Service, Blanchardstown Dublin, Ireland
| | - D Molloy
- Health Service Executive, Communicable Disease Unit of the Environmental Health Service, Blanchardstown Dublin, Ireland
| | - J O’Connor
- National Salmonella, Shigella and Listeria Reference Laboratory, Medical Microbiology Department, University Hospital Galway, Galway, Ireland
| | - P O’Sullivan
- Department of Public Health, Health Service Executive Mid-West, Department of Public Health, HSE West, Limerick, Ireland
| | - J Matthews
- Food Safety Authority of Ireland, Dublin, Ireland
| | - M Ward
- Department of Public Health, Health Service Executive East, Dr Steeven's Hospital, Dublin, Irelan
| | - A Breslin
- Department of Public Health Medicine, Health Service Executive North West, Sligo, Ireland
| | - M B O’Sullivan
- Department of Public Health, Health Service Executive South, Wilton, Cork, Ireland
| | - K Kelleher
- National Office for Health Protection, Health Service Executive Offices, Limerick, Ireland
| | - A McNamara
- Department of Public Health, Health Service Executive Dublin/Mid-Leinster, Tullamore Co. Offaly, Ireland
| | | | - H Pelly
- Department of Public Health, Health Service Executive West, Merlin Park Hospital, Galway, Ireland
| | - F Cloak
- Health Protection Surveillance Centre, Dublin, Ireland
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Abstract
A prospective longitudinal study of 182 children and adolescents with diabetes revealed that during a follow-up of 2.5 +/- 0.5 years the prevalence of retinopathy increased from 10.8% to 28.0%, corresponding to an annual increase of 7%. Retinopathy was diagnosed at a mean age of 15.3 years (95% CI, 14.8-15.8 years) after a mean duration of diabetes of 8.9 years (95% CI, 8.0-9.7 years). Prepubertal years of diabetes contributed to the risk of developing retinopathy. The initial signs of retinopathy were microaneurysm(s) in 56%, microaneurysm(s) and haemorrhage(s) in 30%, and haemorrhage(s) in 10%. A combination of microaneurysm, haemorrhage and cotton-wool spot was observed in 2%, and microaneurysms, haemorrhage and an IRMA lesion were seen in 2%. Most of the initial lesions disappeared during the follow-up period, but at the same time new lesions developed elsewhere in the retina in all but 2 cases. In 8 patients (15% of patients with retinopathy) aged 13.7-19.8 years and having had diabetes for 3.7-14.8 years, retinal changes progressed from mild to a more advanced background retinopathy. A higher glycated haemoglobin level during puberty was the only factor which differentiated these patients from control patients matched for sex, age, puberty and duration of diabetes.
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Affiliation(s)
- A Flack
- Department of Ophthalmology, Oulu University Hospital, Finland
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Entrican G, Flack A, Hopkins J, MacLean M, Nettleton PF. Detection of border disease virus in sheep efferent lymphocytes by immunocytochemical and in situ hybridisation techniques. Arch Virol Suppl 1991; 3:175-80. [PMID: 9210939 DOI: 10.1007/978-3-7091-9153-8_21] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The prefemoral efferent lymphatics of four sheep persistently infected with a non cytopathic (NCP) isolate of border disease virus (BDV) were cannulated. Recovered lymphocytes were examined for the presence of virus by an immunocytochemical technique employing a pool of monoclonal antibodies which recognise the 120K non-structural polypeptide of NCP BDV. The results revealed that 9.5% of the lymphocytes carried virus antigen. Lymphocytes from two of the sheep were studied by in situ hybridisation using a viral antisense RNA probe complementary to the region of the BDV genome coding for the 120K polypeptide. This showed that 70-80% of the cells were infected, confirming the greater sensitivity of the in situ hybridisation technique.
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Affiliation(s)
- G Entrican
- Moredun Research Institute, Edinburgh, U.K
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