My family is being all pissy because I being a germ freak with the new baby, how to get them to suck it up?

So I am having a repeat c-section next Thursday and will be in the hospital until mid-morning Sat depending on how well I am recovering. Due to H1N1 the hospital has enacted a policy of not allowing anyone under 18 into the hospital to visit ANY one because there are H1N1 cases in the hospital and children are most succeptable and they are trying to prevent them from getting it. This doesn't really bother me excpet for with our 2.5 YO but I think we have worked out ways she'll still get to see me a bit. It works out because I didn't want my 2 younger cousins there visiting (9 and 7) or my nephews (husbands sisters kids) 4 and 6 months. Mostly because the older two are annoying as hell. The 4 YO is always sick and is obnoxious. And the 6 month old has all his older brothers germs too. Anyway I went out and bought a bunch of refills for our ear thermometer and was planning on making anyone that comes to visit once were home, both adults/kids no matter who they are take their temps before I let them come in. And when I say everyone I mean my mom, dad, his parents friends, their kids ect. Sometimes people don't know they are sick but will have a lower grade fever before any other symptoms and I figure this is the best way to weed out any illness. I also have HUGE jugs of anti-bacterial stuff ALL over my house and to take to the hospital. My MIL is making SUCH a HUGE deal out of this. To me because of the H1N1 and the fact that it is cold weather where we live and our house is all closed up I want to prevent as many germs as I can. A HUGE reason I am doing this is because of my SIL's sons and my MIL. They are ALWAYS sick with something. And for some reason they think it's totally OK to bring themselves around our family even when they are sick(ish). My 2.5 YO had pneaumonia twice before and I am VERY protective of her health wise, like as far as people knowingly being sick and still comming over ect. My MIL and SIL are SOO quilty of this. Literally EVERY time she has gotten sick this last year has ONLY been when she was around my nephew/MIL and within a day/two after I found out they had been "sick" and then she all of the sudden is sick too. And becasue of the pneaumonia she gets it a lot worse then others do. I don't want to expose not only her, but especailly the new baby to that too. And I think it's the only fare way to go about it. Is this too extreme? I mean it's an ear thermometer and it takes like 3 seconds, and I have all the ear pieces too. If the person isn't showing a fever then it shouldn't be any big deal at all. And if they are they should respect the fact that this is our brand new baby, and 2.5 YO that I don't want exposed.