Sick baby

So I agreed to have my family from about 10 hours away stay at our home for an entire week for Christmas. My mom shows up and says I’m just getting over a cold. Already annoyed that I wasn’t aware of this before hand but I tried to be kind about it. Then 3 other people got sick, coughing runny noses etc. all sleeping in our living room leaving dirty tissues and such around. I tried my best to keep baby away without being rude as I understand they don’t get to see baby much but they were all over him and he got super sick like 2 days before they left and now I’m getting it too. I texted them calmly saying please take more precaution being sick around my baby and please do not visit again if you are sick or just getting over sick as it’s not fair for my son to be miserable just because you wanted to see him for the holidays. Well that turned into a huge fight where my mom denied getting anyone sick and acted like I was a crazy bitch and is now refusing to talk to me or visit again. I tried to apologize for some comments I made in the Heat of the moment but said I still don’t want sick people around my baby and she still got mad. Haven’t heard from her or anyone else since yesterday morning. Someone please tell me I’m not insane. I just can’t get over how ridiculous this all is.