Consumer health basics
Learning Center
Swimmer's ear
The moist environment from water remaining in your ear after swimming or bathing can lead to this infection in the outer ear canal.
Deviated septum
Learn how uneven nostrils can cause congestion, nosebleeds or other symptoms in severe cases.
Group B strep disease
This common bacterium, usually harmless in healthy adults, can cause serious illness in newborns and adults with certain chronic conditions, such as diabetes.
Brucellosis
Contact with raw dairy products is the most common cause of this serious infectious disease that spreads from animals to people.
Legionnaires' disease
Bacteria that can live in water from air conditioning systems, showers and spas cause this severe form of pneumonia.
Severe acute respiratory syndrome (SARS)
Learn about this contagious and sometimes fatal respiratory illness. The last known infection was reported in 2004.
Ramsay Hunt syndrome
A shingles outbreak can affect the facial nerve near one of your ears, potentially causing facial paralysis and hearing loss.
Rabies
Learn about this deadly virus that most often spreads to people through the bite of an infected animal.
Hantavirus pulmonary syndrome
Learn about the rodent-transmitted virus that causes severe — and sometimes fatal — lung disease with flu-like symptoms that can rapidly worsen.
Metabolic syndrome
Having three or more specific risk factors, such as high blood pressure or abdominal fat, boosts your risk of type 2 diabetes and heart disease.
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