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  • Influenza (flu) - Symptoms and causes - Mayo Clinic
    Overview Flu, also called influenza, is an infection of the nose, throat and lungs, which are part of the respiratory system The flu is caused by a virus Influenza viruses are different from the "stomach flu" viruses that cause diarrhea and vomiting Most people with the flu get better on their own But sometimes, influenza and its complications can be deadly To help protect against
  • Influenza (seasonal) - World Health Organization (WHO)
    WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response
  • Seasonal influenza - Global situation - World Health Organization (WHO)
    Seasonal influenza (‘the flu’) is an acute respiratory infection caused by influenza viruses that circulate globally and year-round It can cause illness ranging from mild to severe, sometimes resulting in hospitalization or death Seasonal influenza activity has increased globally in recent months, with an increased proportion of seasonal influenza A(H3N2) viruses being detected This
  • Influenza (gripe) - Síntomas y causas - Mayo Clinic
    Descripción general La gripe, también llamada influenza, es una infección de la nariz, la garganta y los pulmones, que son parte del sistema respiratorio La gripe es causada por un virus Los virus de la influenza son diferentes de los virus de la gastroenteritis viral, que causan diarrea y vómitos
  • Flu symptoms: Should I see my doctor? - Mayo Clinic
    I think I have the flu, also called influenza Should I see my doctor? Call your healthcare professional if you think you have the flu and you or someone you're caring for is at high risk of serious flu illness, or flu-related complications Unlike a cold, the flu tends to come on suddenly and makes you feel much worse than a cold
  • COVID-19 vs. flu: Similarities and differences
    Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases
  • Influenza (avian and other zoonotic)
    Signs and symptoms in humans Human infections with avian influenza viruses can cause illness ranging from mild, flu-like symptoms or eye inflammation (conjunctivitis) to severe, acute respiratory disease and death Gastrointestinal and neurological symptoms have been reported infrequently
  • Hantavirus pulmonary syndrome - Symptoms causes - Mayo Clinic
    The symptoms of hantavirus pulmonary syndrome can worsen suddenly and may quickly become life-threatening If you have flu-like symptoms that progressively worsen over a few days, see your healthcare professional Get immediate medical care if you have trouble breathing
  • Influenza: A (H5N1) - World Health Organization (WHO)
    H5N1 is one of several influenza viruses that causes a highly infectious respiratory disease in birds called avian influenza (or "bird flu") Infections in mammals, including humans, have also been documented H5N1 influenza virus infection can cause a range of diseases in humans, from mild to severe and in some cases, it can even be fatal Symptoms reported have primarily been respiratory
  • 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





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