Methicillin-resistant and -susceptible Staphylococcus aureus from retail meat in Denmark
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Methicillin-resistant and -susceptible Staphylococcus aureus from retail meat in Denmark. / Tang, Yuanyue; Larsen, Jesper; Kjeldgaard, Jette; Andersen, Paal Skytt; Skov, Robert; Ingmer, Hanne.
I: International Journal of Food Microbiology, Bind 249, 16.05.2017, s. 72-76.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Methicillin-resistant and -susceptible Staphylococcus aureus from retail meat in Denmark
AU - Tang, Yuanyue
AU - Larsen, Jesper
AU - Kjeldgaard, Jette
AU - Andersen, Paal Skytt
AU - Skov, Robert
AU - Ingmer, Hanne
PY - 2017/5/16
Y1 - 2017/5/16
N2 - Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is increasingly related to human infections. Farmers and veterinarians have the highest risk, but infections have also occurred in individuals without prior contact to livestock. Clonal complex (CC) 398 is the predominant LA-MRSA lineage causing human infections, and although pigs are the major source of CC398 worldwide, poultry and other animals are also reservoirs. This raises concern for transmission of MRSA via meat. In this study, the occurrence and characteristics of S. aureus isolated from Danish retail meat were examined with main focus on chicken meat.A total of 145 meat samples from Danish supermarkets were examined, including chicken (Danish, n = 102), turkey (non-Danish origin; n = 23), and pork (Danish, n = 20). S. aureus was detected in 69% of the meat samples. MRSA was detected in 19 meat samples (13%), resulting in MRSA prevalence of 4% of chicken, 52% of turkey, and 15% of pork. Three MRSA positive samples were obtained by direct plating (Brilliance MRSA2), whereas 16 MRSA positive samples were detected only after enrichment (TSB + 6.5% NaCl and Brilliance MRSA2).Based on spa typing, 68% of MRSA isolates belonged to CC398 (spa t034, t011, t2582, t108), and hereof one isolate derived from chicken (1%). Further findings were spa type t1430 (CC9) in turkey samples (16%) and the human-associated t008 (CC8) in chicken samples (16%).In conclusion, S. aureus was readily detected in Danish retail meat, but presence of MRSA in chicken meat is rare and it is unlikely to be an important transmission factor of MRSA to humans.
AB - Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is increasingly related to human infections. Farmers and veterinarians have the highest risk, but infections have also occurred in individuals without prior contact to livestock. Clonal complex (CC) 398 is the predominant LA-MRSA lineage causing human infections, and although pigs are the major source of CC398 worldwide, poultry and other animals are also reservoirs. This raises concern for transmission of MRSA via meat. In this study, the occurrence and characteristics of S. aureus isolated from Danish retail meat were examined with main focus on chicken meat.A total of 145 meat samples from Danish supermarkets were examined, including chicken (Danish, n = 102), turkey (non-Danish origin; n = 23), and pork (Danish, n = 20). S. aureus was detected in 69% of the meat samples. MRSA was detected in 19 meat samples (13%), resulting in MRSA prevalence of 4% of chicken, 52% of turkey, and 15% of pork. Three MRSA positive samples were obtained by direct plating (Brilliance MRSA2), whereas 16 MRSA positive samples were detected only after enrichment (TSB + 6.5% NaCl and Brilliance MRSA2).Based on spa typing, 68% of MRSA isolates belonged to CC398 (spa t034, t011, t2582, t108), and hereof one isolate derived from chicken (1%). Further findings were spa type t1430 (CC9) in turkey samples (16%) and the human-associated t008 (CC8) in chicken samples (16%).In conclusion, S. aureus was readily detected in Danish retail meat, but presence of MRSA in chicken meat is rare and it is unlikely to be an important transmission factor of MRSA to humans.
KW - Staphylococcus aureus
KW - MRSA
KW - MSSA
KW - Retail meat
KW - Chicken
KW - spa typing
U2 - 10.1016/j.ijfoodmicro.2017.03.001
DO - 10.1016/j.ijfoodmicro.2017.03.001
M3 - Journal article
C2 - 28324679
VL - 249
SP - 72
EP - 76
JO - International Journal of Food Microbiology
JF - International Journal of Food Microbiology
SN - 0168-1605
ER -
ID: 179525344