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Influenza (flu) - Symptoms and causes - Mayo Clinic
Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.
H1N1 flu (swine flu) - Symptoms and causes - Mayo Clinic
Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products from Mayo Clinic Symptoms The symptoms of flu caused by H1N1, commonly called the swine flu, are similar to those of other flu viruses.
World Health Organization (WHO)
The United Nations agency working to promote health, keep the world safe and serve the vulnerable.
Influenza (seasonal) - World Health Organization (WHO)
WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response.
Norovirus infection - Symptoms & causes - Mayo Clinic
This highly contagious virus spreads through contaminated food, water or surfaces and causes vomiting and diarrhea. Learn ways to protect yourself.
Stevens-Johnson syndrome - Symptoms & causes - Mayo Clinic
Learn more about the causes of this rare disorder of the skin and mucous membranes, its early signs, and whether it's preventable.
Flu symptoms: Should I see my doctor? - Mayo Clinic
Treating flu for people at high risk If you're in one of these groups or you have serious symptoms linked to flu infection, your doctor may prescribe an antiviral medicine. Examples include oseltamivir (Tamiflu), baloxavir (Xofluza), zanamivir (Relenza) or peramivir (Rapivab).
Hantavirus pulmonary syndrome - Symptoms & causes - Mayo Clinic
Learn about the rodent-transmitted virus that causes severe — and sometimes fatal — lung disease with flu-like symptoms that can rapidly worsen.
Viral gastroenteritis (stomach flu) - Symptoms & causes - Mayo Clinic
Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. The most common way to develop viral gastroenteritis — often called stomach flu — is through contact with an infected person or by ...
Bell's palsy - Symptoms and causes - Mayo Clinic
Bell's palsy is a condition that causes sudden weakness in the muscles on one side of the face. Often the weakness is short-term and improves over weeks. The weakness makes half of the face appear to droop. Smiles are one-sided, and the eye on the affected side is hard to close.
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