Help!! Need desperate advice!

Yesterday my house flooded due to an extremely blocked waste pipe. While I was showering my partner and son were in the living room playing. Some how the water from my shower caused the toilet to start pouring basically sewage throughout the house, my partner screamed for me to come down and help and I barefoot and half dressed ran through the dirty water and my son (16 months old) had slipped and was covered in it as was my partner. It had gotten all over us and all over my son who may have gotten some into his mouth. I immediately got him in a bath but because I couldn’t drain the water he was basically just bathing in dirty water. We ran to my partners mums house and got all showered and cleaned there while my family cleaned the house. Because the water soaked into the carpet (without my knowledge) my son has been crawling around on it and parts are still damp with it. Can he get sick from this?? I know the floor was mopped but I have a feeling the same mop head that soaked the dirty water up was used to ‘clean’ the floors which my son has been crawling and walking on. I don’t know what to do as there isn’t anywhere we can go and it’s December so money is tight and we can’t stay out the house. I’m more worried about my son’s health if he’s crawling on the damp and if the floor hasn’t been cleaned properly. What could happen I’m so scared.