Trend? Speckled Sussex and Mycoplasma Synoviae MS

[so_fancy_af]

When searching these forums for info on MS symptoms I noticed something interesting: it seemed like quite a few posts were about speckled Sussex hens. Bebee, my afflicted chicken, is a speckled Sussex and so far (fingers crossed x100) her flock mates of all different breeds are not showing signs. Is there a known predisposition for MS in this breed? Is it endemic in the line? Or is this just an anecdotal coincidence?

 

[nuthatched]

I'd say it more along the lines of speckled Sussex are fairly popular.