Conditions list medically reviewed by George Krucik, MD, MBA
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
Swine flu, or H1N1, is highly contagious and can spread quickly from person to person. A simple sneeze may cause thousands of germs to spread through the air.
Pneumonia is an infection of the lungs caused by fungi, bacteria, or viruses. General symptoms include chest pain, fever, cough, and trouble breathing.
Are your cold symptoms lasting longer than a week? Do you have walking pneumonia? Learn how to treat and prevent this condition.
Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
Diabetic ketoacidosis (DKA) is a serious complication of type 1 diabetes, though it can also rarely be seen in people with type 2 diabetes.
Parrot fever is a rare infection caused by Chlamydia psittaci, a specific type of bacteria. The infection is also known as parrot disease and psittacosis.
Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.
Histoplasmosis is a type of lung infection. It is caused by inhaling fungal spores. Spores are found in soil and in the droppings of bats and birds.
Legionnaires' disease is a severe type of pneumonia, or lung infection. Learn about its symptoms, causes, treatment, and prevention.
Bird flu, also called avian influenza, is a viral infection that can also infect humans and other animals. Read on to learn how it's diagnosed and treated.
Severe acute respiratory syndrome (SARS) is a serious form of viral pneumonia. The virus that causes SARS was first identified in 2003.
Valley fever is an infection caused by the Coccidioides fungus. Learn about valley fever symptoms, causes, treatment, prevention, and more.
MRSA is an infection caused by a type of staph bacteria that's resistant to many different antibiotics. Learn about its symptoms, causes, and treatment.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.