Table 2.

Principal MRSA clones shared between animals and humans.

Lineage	Clone*	Companion animals	Horses	Pigs	Poultry	Cattle	Humans	Reference
CC1	ST1			●		●	●	Juhasz-Kaszanyitzky et al. (2007), Cuny et al. (2008), Franco et al. (2011)
CC5	ST5 (USA100)	●		●	●	●	●	Khanna et al. (2008), Hata et al. (2010), Hasman et al. (2010), McDougal et al. (2003)
CC8	ST8 (USA500)		●				●	Morgan (2008), McDougal et al. (2003)
	ST254		●					Cuny et al. (2008)
CC9	ST9		●	●				European Food Safety Authority (2009), Cuny et al. (2008), Battisti et al. (2010)
CC22	ST22 (EMRSA-15)	●					●	Loeffler et al. (2005), Ellington et al. (2010)
	ST36 (EMRSA-16)	●					●	Loeffler et al. (2005), Ellington et al. (2010)
CC97	ST97			●			●	Battisti et al. (2010), European Food Safety Authority (2009), Gomez-Sanz et al. (2010), Monecke et al. (2011)
CC130	ST130					●	●	Cuny et al. (2011), Garcia-Alvarez et al. (2011), Shore et al. (2011)
CC398	ST398*	●	●	●	●	●	●	Loeffler et al. (2009), Cuny et al. (2008), de Neeling et al. (2007), Nemati et al. (2008), Vanderhaeghen et al. (2010a), Kock et al. (2011)

*Principal ST encountered, including also single and double locus variants. The dot means present.