Saturday, 8 September 2012

Staphylococcus aureus in Pigs and Farmers - Senegal


Senegal seems to have done more research than Britain on Staphylococcus aureus in pigs and farmers. They are certainly publishing what they know. We imagine that their veterinarians have less to hide.

Epidemiology of Staphylococcus aureus in Pigs and Farmers in the Largest Farm in Dakar, Senegal

To cite this article:
Cheikh Fall, Abdoulaye Seck, Vincent Richard, Moustapha Ndour, Mbacke Sembene, Frederic Laurent, and Sebastien Breurec. Foodborne Pathogens and Disease. -Not available-, ahead of print. doi:10.1089/fpd.2012.1197.
Online Ahead of Print: September 6, 2012
Full abstract and access to PDF and links here

Author information

Cheikh Fall,1 Abdoulaye Seck,1 Vincent Richard,1 Moustapha Ndour,2 Mbacke Sembene,3 Frederic Laurent,4 and Sebastien Breurec1
1Unit of Medical Biology and Environment, Institut Pasteur, Dakar, Senegal.
2Department of Breeding, Ministry of Breeding, Dakar, Senegal.
3Department of Animal Biology, Faculty of Sciences and Technology, Cheikh Anta Diop University, Dakar, Senegal.
4National Reference Center for Staphylococci, University of Lyon, Lyon, France.

ABSTRACT

Abstract
Between December 2009 and November 2011, we collected 57 (12.3%) Staphylococcus aureus isolates from 464 pigs and 16 (30.8%) isolates from 52 farmers in the largest farm in Dakar. Fifty-one isolates (70%) belonged to four major multilocus sequence typing clonal complexes (CCs): CC152 (26.0%), CC15 (19.2%), CC5 (13.7%), and CC97 (10.9%). The CC variability among the pigs was similar to that observed among the farmers. Six isolates that were recovered only among pigs were resistant to methicillin (10.5%). They were assigned to the ST5-staphylococcal cassette chromosome mec type (SCCmec) IV (n=5) and ST88-SCCmec IV (n=1) clones. Theluk-PV genes encoding Panton-Valentine leukocidin (PVL), present in 43 (58.9%) isolates overall, including all major CCs and the MRSA ST5-SCCmec IV clone, were highly prevalent compared to data from industrialized countries. This finding is of major concern with regard to the potential virulence of these strains.