He is lying...you must know this in your heart.

I know that there's this crazy feeling with things like this - it's normal - you aren't losing your mind. You are currently married to a liar.

Again, don't let him act like you are in the wrong. He is...and again, ask him if he wants to protect his lie at the cost of getting the kids sick.

You CAN catch hepatitis from saliva and other transmission methods.

What does he love more - his kids being safe or his lies. Put the burden on HIM.

http://www.hepatitis-central.com/mt/archives/2007/03/can_saliva_tran.html

People with chronic Hepatitis C are advised not to share toothbrushes, razors, nail clippers or other personal articles that may have potentially been in contact with their blood.