Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Staph infectionUpdated: 2020-05-06OverviewStaph infections can turn deadly if the bacteria invade deeper into the body. Staph is spread person-to-person and is very contagious. SymptomsSkin infections can cause boils and oozing blisters. When Staph cause food poisoning or a bloodstream infection, fever, nausea, and joint, muscle or belly pain may occur.TreatmentsSome strains of staph (MRSA) no longer respond to common antibiotics. Drainage of the infection is often required. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use