You mean the correlation with the SGLT2 inhibitors?  The real question is whether it's the medication, or the fact that the pigs take such poor care of themselves that they have to be on a dozen different drugs to keep Lord Beetus from killing them.  High blood sugar is toxic and creates an immunosuppressing effect.  Combined with poor hygiene that you commonly see with morbidly obese diabetics, you're just begging for trouble.