The Tumbela Coalition

[Duco Ndona]

Its just an coincidence. 

Tuberculosis spreads though the air and not genetically. At best you can get some genetic immunity, but even that is iffy and only protects you that much.
Besides, if the coalition contracted it during cubhood. Their harsh nomadic life would have taken them out.

Most likely the Tumbellas ate a infected kill before reaching the Othawas. And Skorro either was absent at that specific kill, (Like being seperated during the hunt). Or if he does have it, just happened to be lucky enough to keep his immune system up long enough until now. 

Assuming his current ailment is the illness and not due to a fight or accident. 
A scar is easy to heal and does so easily on its own even in the most dire lifestyles, assuming it doesnt get infected. 
A bust leg however, requires rest. Which Skorro with his constant fleeing and hunting for himself wouldn't get. So it is possible that leg troubles continue long after the scars are gone and sets off trouble later. Reply