It's a pretty common symbol, mostly in the U.S. How ever it is two snakes with a set of wings, this stands for medicine instead of the correct rod of asclepius. I hope in some way this helps.
A tendency to suffer from a particular medical condition
I would say this way of defining family is by blood relationship ie sharing the same blood as the parents as opposed to say someone brought up by foster parents ie adopted and thus having a family by virtue of upbringing ie by who the child was brought up by.
In 2006, diseases such as cancer, heart diseases, stroke, and similar diseases take away most people which is due to their lifestyles and the high amount of stress found in the world today
