Can you get depression, if you're constantly around people who have it?

IDK if it would be considered legal depression, but yes, they can change your mood. They DO "rub" off on you. You can tell be conducting a little test.....stay away from depressed people for a week or so. If you feel like you are becoming more and more positive as the days go by, then you know you are effected. I purposely removed all the negative people (places and things ) from my life over the past few yrs, and I couldn't be happier now. I can spot a negative person a mile away, and I get away from them as fast and as far as I can.....w/o being rude, of course. I feel sorry for them that they are in such a negative way, consciously or unconsciously, but I just do not have room in my life for negative energy. I do not deal with it very well, and I am susceptible for it to rub off on me, so I just do not put myself in that situation anymore.