As you know, Gavin receives IVIG infusions twice a week because he's living with a severely compromised immune system. The actual medication is called GAMMAGARD and it's basically made up of antibodies from many, many different donors. This replaces the defunct antibodies in Gavin's body, for a short period of time. He's been receiving these infusions for many years now and will continue for the rest of his life. Now we're all caught up and everyone is on the same page. Gavin received his IVIG infusion tonight and the infusion itself went well. The actual infusions themselves usually go well.  Sometimes we hit some snags but that's really the exception to the rule. What happened tonight was a bad reaction. It happens on occasion but it hasn't happened in a…