Wipe with disinfectant everything the 2 year old or the 6 year old might touch- the germs get on their hands and then they have it, same with you and your husband. Wipe the toilet flusher, the faucet handles, light switches, remote, telephones, and so forth. Good luck!
My 2 year old got it and I was sure we all would but it was only him.
Anyway, like the other ladies said, wipe everything down lots. I've heard to change sheets daily. And for the rest of you, drink plenty of fluids and wash hands a lot!