How long till the sickness is out of the house??

Hmm... that would really depend on the sickness that your brother is suffering from, doesn't it? It also depends on how well ventilated is the place he is staying. If the place is stuffy, the germs are going to be hanging around a lot longer than necessary. But if the place is well kept and well ventilated, one week should be good for any sickness.

the sickness dont come out till all the family has it.just like my situation, first was my little girl, me and then hubby.i gues better to avoid not to visit till your brother is not well yet.better safe than sorry.

I don't know but I know that there is an incubation period of about 10 days when you don't have symptoms yet but you are actually the most contagious

From what I know of the cold virus, you're only contagious for one week. After that, it's safe to be around people without worrying about catching it or giving it. My sister lived her last 5 years in a nursing home and, whenever there was an outbreak of any kind of virus, they would literally quarantine the place for one week. No one was allowed to visit unless they were not sick AND wore a mask, and if it was absolutely necessary that they visit. So, that basically backed up what I knew... one week and the contagious part is over. That also means that the germs are no longer hanging around on hard surfaces, either. You're good to go if it's been over a week since your brother got sick.