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Infection - Wikipedia
Signs of Infection: Symptoms and Treatments - Healthline
Infectious diseases - Symptoms & causes - Mayo Clinic
Infection: Types, causes, and differences - Medical News Today
Bacterial Infection: Causes, Symptoms, Treatment & Prevention
Infection: Viral, Bacterial, Respiratory, and More Infections
What Are the Symptoms of an Infection? - Verywell Health
Infectious diseases - Diagnosis & treatment - Mayo Clinic
Germs: Protect against bacteria, viruses and infections
Infectious Disease: Types, Causes & Treatments - Cleveland Clinic