Fungal Infections Slideshow: Fungus Among Us Take the Tummy Trouble Quiz Hepatitis C Slideshow Pictures Bacterial: Of or pertaining to bacteria, as in a bacterial lung infection. From Infectious Disease Resources 8 Serious HIV Symptoms to Watch ForIs It a Cold, Strep, or Tonsillitis?Tips to Prevent Cold Sores Featured Centers When Prostate Cancer SpreadsEssential Tips to Manage DiabetesWhat Is Cystic Fibrosis? What Causes It? Health Solutions From Our Sponsors Kept Your Wisdom Teeth? What is TAVR?