It can cause mild to severe illness. Every year, mainly during the winter season, seasonal influenza infects as many as 1 billion people. · seasonal influenza is an acute respiratory infection caused by influenza viruses which circulate in all parts of the world. Includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, who response. The disease occurs worldwide … Influenza (flu) is a contagious respiratory illness caused by influenza viruses. · who fact sheet on influenza: The virological data entered into flunet, e. g. Flunet is a global web-based tool for influenza virological surveillance first launched in 1997. This makes it one of the most … The virus is transmitted easily from person to person via droplets. · who questions and answers page on avian influenza – a(h5n1) – including symptoms, treatments and prevention. Influenza, or the flu, is both a seasonal and a pandemic virus. Influenza tends … · the world health organization (who) today announced the recommendations for the viral composition of influenza vaccines for the 2025–2026 influenza season in the northern … Number of influenza viruses detected by subtype, are … · influenza is an acute viral infection that primarily attacks the upper respiratory tract, including the nose, throat, bronchi and, less frequently, the lungs. It is characterized by a sudden onset of fever, cough … 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, … · the most common symptoms of influenza (flu) include fever, a dry cough, headache, muscle and joint pain, a sore throat and a runny nose.
Flu Shot And Bird Flu: The Surprising Connection (Ferret Study)
It can cause mild to severe illness. Every year, mainly during the winter season, seasonal influenza infects as many as 1 billion people. · seasonal...