RecruitingBehavioural interventionTrial to Reduce Antimicrobial Use in Nursing Home Residents With Alzheimer's Disease and Other Dementias 2.0The goal of this pragmatic cluster randomized clinical trial is to compare management of suspected infection in nursing home residents with dementia The main questions it aims to answer whether residents with dementia in nursing homes randomized to use a multicomponent intervention to optimize suspected infection management ( versus usual care) use less antibiotics and fewer burdensome interventions.