Influenza (flu) - Symptoms and causes - Mayo Clinic
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 ...
Influenza (Seasonal) - World Health Organization (WHO)
Overview. Seasonal influenza (the flu) is an acute respiratory infection caused by influenza viruses. It is common in all parts of the world. Most people recover without treatment. Influenza spreads easily between people when they cough or sneeze. Vaccination is the best way to prevent the disease. Symptoms of influenza include acute onset of ...
Influenza (gripe) - Síntomas y causas - Mayo Clinic
Jan 10, 2024 · 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. La influenza se conoce comúnmente como gripe, pero es diferente de los virus de la “gripe” estomacal, que causan diarrea y vómitos.
Influenza (flu) - Diagnosis and treatment - Mayo Clinic
Treatment. If you have a severe infection or are at high risk of complications from a flu infection, your healthcare professional may prescribe an antiviral medicine to treat the flu. These medicines can include oseltamivir (Tamiflu), baloxavir (Xofluza) and zanamivir (Relenza). You take oseltamivir and baloxavir by mouth.
Virology of human influenza - World Health Organization (WHO)
May 13, 2010 · Influenza virus. Human influenza viruses belong to the Orthomyxoviridae family, which consists of the genera influenza A, B, and C virus, thogotovirus (carried by ticks, and infecting humans), and isavirus (infecting fish), as well as of a few other, newly described arboviruses. Only influenza A and B viruses cause epidemics in human beings.
Influenza - World Health Organization (WHO)
Nov 27, 2009 · Influenza is characterized by a sudden onset of high fever, cough, headache, muscle and joint pain, malaise, and a runny nose lasting 2 to 7 days. Influenza is usually mild and uncomplicated and most people recover without medical treatment. However infection with influenza may occasionally cause severe disease and death, particularly among the ...
History of influenza vaccination - World Health Organization (WHO)
The H1N1 influenza pandemic that swept across the world from 1918 to 1919, sometimes called “the mother of all pandemics”, involved a particularly virulent new strain of the influenza A virus. The first wave of infections in early 1918 resulted in mild illness, but a second wave later that year was more deadly.
Influenza seasonal - World Health Organization (WHO)
Oct 16, 2024 · Seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world. It is characterized by a sudden onset of fever, cough (usually dry), headache, muscle and joint pain, severe malaise (feeling unwell), sore throat and a runny nose. The cough can be severe and can last two or more weeks.
Influenza (Avian and other zoonotic) - World Health Organization …
Influenza A viruses are established in many animal species. The emergence of an influenza A virus, with the ability to infect people and sustain human-to-human transmission, could cause an influenza pandemic. Influenza type A viruses are classified into subtypes according to the combinations of the proteins on the surface of the virus.
Influenza: A(H5N1) - World Health Organization (WHO)
May 16, 2024 · 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, but conjunctivitis and other non-respiratory symptoms have also been reported. There have also been a few detections of A (H5N1) virus in persons who were exposed ...