Keep up the good work for your wife. In the long run it should help her getting back to somewhat normal living.

I was somewhat similar. I had caught a real bad bacterial infection. Was in the hospital for 3 months before they could get it controlled. Then 3 months of infusions. In the beginning 1 doctor said "I hope we can keep him alive for the next 48 hours. Well I made it to the 3 months. Recovery took almost a year.
The problem was it lowered the functions of just about every organ. My AIC went to 9.5 and I could not get it down that much. Took a couple meds and that did not help. For some unknown reason at the one year mark my A1C started to drop. After another 6 months my A1C went below 6.0 and I have been that way for the last 7 years. One doctor suggested my internal organs which were all low functioning started functioning again at more normal levels. I still have chronic kidney disease which does not bother me much. I guess my "watch what I eat" and exercise at the YMCA helps a lot