We often see articles and news reports where Mesothelioma and asbestos are discussed as though they are the same thing. In truth, there is a big difference between Mesothelioma and asbestos.
As a society, we tend to generalize terms that we use frequently. I am as guilty of this as anyone. I order a coke every time at a drive through or restaurant. Why is this weird? Well, I use the term to cover the general area of a soda. I do this even though I prefer Pepsi to Coke. In fact, I prefer Dr. Pepper to both of them, but I will still just order a "coke".