I know the basics of how toxic some chemicals in the collodion wet plate process are and I always wear protective gear while handling them, but one thing I haven't really been able to find out is how dangerous residue might be.

If after loading a plate I touch the camera with my gloves (which are almost certainly covered in some amount of collodion + silver nitrate) should I be worried about handling the camera afterwards without gloves? For how long?

What about the finished plates? If I observe the usual washing procedure (at least 4 minutes) and then varnish them, are they safe to handle without gloves?