World Poultry News: May 19, 2010: http://www.worldpoultry.net/background/spondylitis-is-emergingin-broilers-7472.html
In World Poultry Vol. 23 No. 12, 2007, we described spondylitis caused by the bacterium Enterococcus cecorum as a newly emerging disease in broiler breeders in the US. Until recently the disease was only a problem in male broiler breeders, but now we are also seeing it in flocks of broiler chickens, with many birds in the flock described as having “leg problems”.

No wonder why I feel like a chicken this week!
And at first they thought it was a just male chicken's disease.

Note the fusion: