Conditions list medically reviewed by George Krucik, MD, MBA
Allergic rhinitis, or hay fever, is your body's response to specific allergens. It causes uncomfortable symptoms like sneezing and itchy eyes.
Common colds and influenza are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Shared…
Epiglottitis is characterized by inflamed tissue in your epiglottis. It's a potentially life-threatening condition. Learn who gets it, why, and how it's treated.
Learn about the causes and symptoms of chronic bronchitis, how to get tested, and when to seek treatment.
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.
Allergic asthma is asthma caused by an allergic reaction. You may have allergic asthma if you have trouble breathing during allergy season.
Laryngitis occurs when your voice box and vocal cords become swollen and irritated. This fairly common condition often causes hoarseness or loss of voice.
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.
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
Croup is a viral condition that causes swelling around the vocal cords. It's most active in the fall and winter months and targets children under the age of 5.
Diphtheria is a bacterial infection that affects the throat and nose. Find information on diphtheria symptoms, causes, treatment, and prevention.
Most incidents of chlorine poisoning result from ingesting household cleaners. Learn about symptoms and treatments.
Neutropenia is a condition characterized by low levels of neutrophils, which are white blood cells that fight infection. Find out about symptoms and treatment.
Severe acute respiratory syndrome (SARS) is a serious form of viral pneumonia. The virus that causes SARS was first identified in 2003.
Poliomyelitis, or polio, is a highly contagious disease that is caused by a virus that attacks the body's nervous system.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.