This is a prospective Phase 4, open-label, non-randomized, observational, multi-center study of infliximab in participants with plaque-type psoriasis to assess the clinical response in real-world practice of long-term maintenance therapy with infliximab 5 mg/kg body weight in a psoriasis population, prescribed in a regimen in accordance with the product monograph (PM) for Canada, the approved summary sheet of product characteristics (SPC) for countries in the European Union (EU), or per label according to local guidelines for all other participating countries.