Will my baby catch my cold?

Cheyenne
My baby is only three days old and I EBF. My fiancés parents had a cold and invited themselves over to my house. I woke up this morning with a sore throat and I am dissapointed that they couldn't respect me and my son enough to wait until they were feeling better to stop by. But since I can't change that, is their anything I can do to keep my baby from catching it?