Conditions list medically reviewed by George Krucik, MD, MBA
A cold is a common viral infection of the upper respiratory tract–namely, your nose and throat. A runny or stuffy nose, sneezing, coughing, and sore throat are common…
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
Tonsillitis can occur at any age and is a common childhood ailment. It is most often diagnosed in children from preschool age through their midteens.
Pneumonia is an infection of the lungs caused by fungi, bacteria, or viruses. General symptoms include chest pain, fever, cough, and trouble breathing.
Tuberculosis (TB) is a highly infectious disease that primarily affects the lungs. Read more on whom it affects and how to treat it.
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.
Are your cold symptoms lasting longer than a week? Do you have walking pneumonia? Learn how to treat and prevent this condition.
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
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.
Valley fever is an infection caused by the Coccidioides fungus. Learn about valley fever symptoms, causes, treatment, prevention, and more.
Weil's disease is a severe form of the bacterial infection leptospirosis. Learn how to lower your risk of getting this potentially life-threatening illness.
Severe acute respiratory syndrome (SARS) is a serious form of viral pneumonia. The virus that causes SARS was first identified in 2003.
A transfusion reaction is when your body has an adverse response to a blood transfusion. Learn how transfusion reactions occur and how to minimize your risk.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.