What's with the "Female" names for illnesses?

Now - first there was mad cow disease - and of course the cow could be relayed as a "female" - cause there are many females that get called cows - so when a female would get disgruntled - a comment always came out "She's got Mad Cow Disease!". Now it has crossed into the flu category - the Avian Flu or as it is called by the lay-person the "Bird Flu". Now it seems that when a female is not well - she has "The Bird Flu" - cause a female is also considered a "chick" and a chick is a "bird". WTF?????? We need some male illnesses here - like "Rooster-itis" (we won't go where THAT one might affect on one's body!) or "Preposterous Bull Disease". Come on you people out there that name diseases and illnesses - it's the guy's turn to get a disease! Diz - Over and Out!