Ssi

Tom lives on SSI.

He's a mentally ill person who's trying to survive on SSI.

For example, Goal 7 “Reduce the risk of health care associated infections” stipulates, among other things, that hospitals have specific strategies in place to prevent surgical site infection (SSI), that they provide regular feedback about SSI rates to caregivers, with follow-up for 30 days, that they discontinue the use of shaving as a method of preop hair removal, etc.