My guess would be that your doctor was worried about
the possibility of periotinis/sepsis. If either did occur you could quickly discontinue the immunosuppresent and hopefully recover immune response. However if one occurred near a dosing of a biologic you would be stuck being immunosuppresed for several weeks which could lead to increased risks associated with dealing with the periotinis/sepsis.
Post Edited (Curious Crapper) : 10/19/2018 10:21:17 AM (GMT-6)