IAm says it pretty well. Queens in an insect colony have no real power. They too are specialized for a particular task, in this case it is reproduction.
Ants make decisions as a collaborative. Typically by smell and outside influences. I don't mean to sound like "I know" they don't have a queen but from the information we have so far... no queen... unless the infection is a bug and each body has a queen and secretes eggs, for the next infection. But that is headed in another direction from where you were headed Rock.
Teeth