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Oct 3, 2023 · 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 ...
Nov 27, 2009 · Symptoms. 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 ...
Oct 16, 2024 · Seasonal influenza 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. For patients that are not in a high risk group, treatment focuses on relieving symptoms of influenza such as ...
Oct 3, 2023 · Human infections with avian and other zoonotic influenza viruses, though rare, have been reported sporadically. Direct or indirect contact with infected animals represent a risk for human infection. Current zoonotic influenza viruses have not demonstrated sustained person-to-person transmission. For avian influenza viruses, the primary risk ...
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 ...
Oct 14, 2024 · 1. COVID-19 and influenza both predominantly affect the respiratory system. Both infections are caused by viruses (SARS-CoV-2 causes COVID-19 and influenza viruses cause influenza), but their effect on individuals can vary. Some individuals have no symptoms or mild symptoms. Other people may suffer from severe disease, requiring hospitalization.
May 16, 2024 · Avian influenza, sometimes known as bird flu, is a disease caused by a virus that mainly affects birds but can also affect mammals, including humans. It primarily spreads from infected birds to humans through close contact with birds or contaminated environments, such as in backyard poultry farm settings and at markets where birds are sold.
Influenza (flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness. The virus is transmitted easily from person to person via droplets. Influenza tends to spread rapidly in seasonal epidemics. Infection usually lasts for about a week, and is characterized by sudden onset of high fever, aching ...
Influenza infection is caused by influenza viruses which circulate in all parts of the world. There are 4 types of influenza viruses, types A, B, C and D. Influenza A and B viruses circulate and cause seasonal epidemics of disease. Influenza A viruses also circulate in animals and can infect people causing. zoonotic influenza.
Jan 20, 2020 · The best way to avoid getting the flu is to get the flu vaccine every year. Influenza viruses evolve constantly, and twice a year WHO makes recommendations to update the vaccine compositions. For the 2016-2017 northern hemisphere influenza season, the vaccine formulation was updated in February 2016 to contain two type A viruses (H1N1 and H3N2 ...
