Jessica, a 20-year-old college student, scraped her knee whi…
Jessica, a 20-year-old college student, scraped her knee while jogging. The area became red, warm, swollen, and painful over the next several hours. Three days later, yellow drainage appeared from the wound, and a healthcare provider diagnosed a bacterial infection. Jessica is confused because she thought inflammation and infection were the same thing. Why did Jessica experience inflammation before the infection developed?