My OH suffers many infections, he is just coming out of a UTI.
He has had at least 12 infections in the last 15mths, 7 during his 12 weeks in hospital, the rest in the last 12 mths, a mix of UTIs, which a rare these days, the others are soft tissue. The signs are obvious to me. He stops feeding himself, had a change of body temp, for UTIs it goes up, with soft tissue infections it goes down to the low 35deg. He doesn't suffer from any personality changes just sleeps a lot.
Thankfully there has been no significant decrease of his abilities. However it can take upto 10 days for any confusion to completely go, just time in time for him have a good week then start going down hill again. ?