ER visit 😔

So my LO is 5 weeks and 2 days. My 2 year old brought home some sort of virus from day care a couple weeks ago 🤒 and he had a 102 fever for a couple days along with cold symptoms. It has been going back and forth between my son, my husband, and myself. Well my daughter got it. A couple days ago she started having cold symptoms. Then a dry cough. Now a wet hacking cough. This morning at 1am her temperature was 100.6 so off to the ER we went. It is now almost 5am and they ruled out RSV, the flu, and a UTI. They tried the lumbar puncture twice but failed both times. As long as her cultures come back normal they won't try again. I'm praying they come back normal 🙏 my little girl is a trooper though