No kidding they used the same kind construction workers did.I bet they did.
Mad camel disease, wow, i'd seriously get the hump if i caught that!! Sorry, couldn't resist.
Weird isn't though. I've never saw a mad cow, or a mad camel for that matter. But i've saw plenty of mad humans in my time. I bet the cows and camels are a bit miffed that their good name is associated with a mad disease.