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Influenza (seasonal) - World Health Organization (WHO)
WHO fact sheet on influenza: includes key facts, definition, symptoms, transmission, seasonal epidemics, effects, prevention, WHO response.
Influenza - What You Need to Know - Drugs.com
Influenza Medically reviewed by Drugs.com. Last updated on Sep 23, 2025. Care notes Aftercare Ambulatory Discharge Inpatient Español Overview Risks Symptoms Diagnosis Treatment Prevention What is influenza (the flu)? The flu is a viral infection of the lungs and airways. The virus spreads through droplets in the air when someone with flu coughs or sneezes. You may also get the virus through ...
Influenza (seasonal) - World Health Organization (WHO)
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.
Recommendations announced for influenza vaccine composition for the ...
The World Health Organization (WHO) today announced its recommendations for the viral composition of influenza vaccines for use in the 2026 influenza season in the southern hemisphere. The announcement was made at an Information Meeting after a 4-day Consultation on the Composition of Influenza Virus Vaccines.
The burden of Influenza - World Health Organization (WHO)
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 and twice a year ...
Gripe (estacional) - World Health Organization (WHO)
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.
Influenza - World Health Organization (WHO)
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.
Global Influenza Programme - World Health Organization (WHO)
The constantly evolving nature of influenza viruses requires continuous global monitoring and frequent reformulation of influenza vaccines. The World Health Organization (WHO) convenes technical consultations in February and September each year to recommend viruses for inclusion in seasonal influenza vaccines for the northern and southern hemispheres, respectively. These recommendations are ...
世卫组织宣布2025-2026年北半球流感季节推荐流感疫苗组分
世界卫生组织（世卫组织）今天宣布了所推荐的2025-2026年北半球流感季节流感疫苗病毒成分。世卫组织在为期4天的流感病毒疫苗组分会议结束后举办的通报会上宣布了其建议。世卫组织每年举行两次流感病毒疫苗组分会议。
Clinical practice guidelines for influenza
This WHO Clinical practice guideline for influenza is an update and expansion from the previously published WHO guideline on the clinical management of patients with severe influenza or at risk of severe influenza. These updated guidelines provide recommendations on the management of both severe and non-severe influenza and also includes recommendations on the use of antiviral medications to ...
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