Ozbronx33,
I have no medical knowledge but being the father of two sons I understand that you can fear so much as your son is so young and you're experimenting this difficult time with him!
Reading the other answers posted before mine, I have great hope that your son will recover soon and that all will end well! 
Still my prayers go to your son and also to William's son!
Please find some peace and receive our hopes.
Best regards
Dje