Skip to content

Surveillance of dairy herds for emerging pathogens - Salmonella, Campylobacter, Listeria, Enterobact

Project Reference: 04-RESR-013

Status: Completed

Commencement Date: January, 2005

Project Duration: 12 months


This project involved surveillance and monitoring of milk production holdings (bovine, ovine and caprine) supplying milk for farmhouse cheese production. The monitoring programme was carried out during a number of seasonal cycles in order to establish baseline data on the prevalence and characteristics of the following key pathogens; Salmonella, Campylobacter, Listeria, Enterobacteriaceae, Staphylococcus aureus and Mycobacterium Avium paratuberculosis.

The information generated has provided key information which can be applied for risk assessment and epidemiological investigations in particular with regard to the food safety risks associated with unpasteurised dairy products. safefood funded this project collaboratively with the Food Safety Authority of Ireland.


Principal Contractor(s):

Mr Jim Buckley, Cork County Council


Single supplier



A Review of the Milk Supply Chain (Data included in the Consumer Focused Review)

Peer Reviews:

Reen, J., Boyd, E.F., Porwillik, S., Murphy, B.P., Gilroy, D., Fanning, S. and McClelland, M. (2005). “Genomic comparisons of Salmonella Enterica Serovar Dublin, Agona and Typhimurium strains recently isolated from milk filters and bovine samples from Ireland, using a Salmonella microarray”. Applied and Environmental Microbiology. 71: (3) 1616-1625.

Brenda P. Murphy, Mary Murphy, James F. Buckley, Deirdre Gilroy, Michael T. Rowe, David McCleery, and Séamus Fanning. (2005). “In-line milk filter analysis: Escherichia Coli O157 surveillance of milk production holdings”. International Journal of Hygiene and Environmental Health 208: 407-413.

Brenda P. Murphy, Rebecca O’Mahony, James F. Buckley, Priscilla Shine, E. Fidelma Boyd, Deirdre Gilroy, and Séamus Fanning (2007). “Investigation of a large collection of non-typhoidal Salmonella of various serotypes cultured between 1953 and 2004 for the presence class 1 integron gene cassette”. FEMS Microbiol Lett. 266: 170-176.

Brenda P. Murphy, James F. Buckley, Elizabeth M. O’Connor, Deirdre Gilroy, and Séamus Fanning (2008). “Comparison of Salmonella species recovered from Irish liquid milk production holdings with temporal clinical veterinary isolates”. International Journal of Hygiene and Environmental Health, 211: 283-291.

Brenda P. Murphy, Emer O’Mahony, James F. Buckley, Stephen O’Brien and Séamus Fanning (2009). “Characterisation of Staphylococcus Aureus isolated from dairy animals in Ireland”. Zoonoses and Public Health 2010 Jun; 57(4):249-57.

Brenda P. Murphy, Emer O’Mahony, James F. Buckley and Séamus Fanning. (2006). “Prevalence of emerging pathogens in Irish dairy herds”. In Book of abstracts of: safefood: All-Island Infectious Intestinal Disease Conference, sharing strategies for control and prevention. 18th and 19th January, Europa Hotel, Belfast, NI, p. 12

Safefood logo

The site content is redirecting to the NI version.