the incubation period of chicken pox is more like 10 days, so your niece came into contact with it much longer ago, so any contact your son has had with her in the last 2 weeks makes it more and more likely he will have it. If he doesnt show it in the next 2 weeks I would say he is safe, but its such an infectious disease that you could touch someone with it and then pass it on to someone yourself without actually contracting it yourself as you are probably immune to it as an adult.
Yep fraid you'd better stock up. My eldest daughter caught chicken pox and exactly 2 weeks to the day later my youngest had it too.
Look out for one little spot on the torso/back area (that's where it usually starts) and watch them spread like wildfire!
Hope he doesn't have it too bad if he has caught it :o)
Better to have it early I say. My daughter got her first spots 3 days before christmas. My christmas day she was spotty but feeling much better. It's not always as scary as it seems. When they get it later on in teens or early adulthood its uuuuuuuuuugleeeee.
Crete thats a load of old rubbish Im afraid. You cant get shingles from having contact with some one who has got chicken pox. Once you get chicken pox the virus remains in your body for life. If for some reason your immune sytem becomes weakened then your body can get attacked by the chicken pox virus causing shingles and the actual shingles are only contagious, not like chicken pox when you are on big wlaking germ...urgh