What will think and do Obama if Ebola will come to Whitehouse - in any way - for example from foreign leaders staff members
Not exactly sure what you are trying to say, but I'll give it a go. There is 0 chance a foreign leader gets close to Obama if there is any chance they make have Ebola. People seem to forget, that Ebola isn't easy to transmit to other people. The whole Ebola scare has been blown out of proportion.
Now, if it did happen, you can guarantee that Obama would get the best treatment possible. With proper medical treatment early enough, Ebola isn't fatal.
No one knows how easy or hard it is to catch Ebola. Some people have caught it even while exercising universal precautions while others have not shown any signs of catching it while living with people who are half dead with it.