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3 paź 2023 · 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.
27 lis 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.
Influenza in humans. Influenza, also known as flu, is a respiratory illness caused by influenza viruses. It occurs globally and affects an estimated 5-10% of adults and 20-30% of children annually.
Flu epidemics kill hundreds of thousands of people globally each year, but countries can respond and save lives with better data.
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.
Most people with influenza have abrupt onset of respiratory symptoms and myalgia with or without fever and recover within 1 week, but some can experience severe or fatal complications. Prevention is primarily by annual influenza vaccination, with efforts underway to develop new vaccines with improved effectiveness.
12 kwi 2022 · The influenza virus is moderately infectious and, on average an infectious person will infect less than two non-immune people. However, immunity to influenza viruses and vaccines wane over time and a large part of the population is susceptible each season.
