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27 thg 11, 2009 · Influenza is an acute viral infection that primarily attacks the upper respiratory tract, including the nose, throat, bronchi and, less frequently, the lungs. The disease occurs worldwide and spreads very quickly in populations, especially in crowded circumstances.
La gripe es una infección vírica aguda que se transmite fácilmente de una persona a otra. Los virus de la gripe circulan por todo el mundo y pueden afectar a cualquier persona de cualquier edad.
Qu’est-ce que l’influenza? L’influenza, souvent appelée la grippe, est une maladie contagieuse causée par des virus qui affectent les voies respiratoires (nez, gorge et poumons).
13 thg 11, 2019 · In tropical regions, influenza can occur throughout the year, causing outbreaks more irregularly, but prevention is still important. Here’s how you can protect yourself, and those around you. Get vaccinated Annual vaccination is the most effective way to protect yourself against flu, and serious complications.
This Spotlight focuses on the lessons we can learn from previous flu pandemics, how prepared we are for another one, and how work on seasonal flu can boost capacity for pandemic preparedness.
Influenza, or the flu, is both a seasonal and a pandemic virus. Every year, mainly during the winter season, seasonal influenza infects as many as 1 billion people. This makes it one of the most common infectious respiratory viruses, after the common cold. Thankfully, the WHO Global Influenza Surveillance and Response System, or GISRS, monitors what viruses are circulating …
25 thg 3, 2025 · 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.
4 thg 6, 2025 · In this update, in addition to the influenza surveillance information, that of the SARS-CoV-2 surveillance by the Global Influenza Surveillance and Response System (GISRS) through its associated sentinel and non-sentinel surveillance systems and reported to the surveillance data platform FluNet hosted by RespiMART is included. Information on respiratory …
28 thg 2, 2025 · WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response.
22 thg 1, 2025 · Since the official start of the seasonal influenza epidemic in late November 2024, indicators of respiratory infections have continued to rise across the WHO European Region. While the magnitude of the influenza season is within the expected range, it is important for health authorities and individuals to remain active in limiting the spread and protecting the most …
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