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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.
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.
季节性流感 - World Health Organization (WHO)
概述 季节性流感（流感）是由流感病毒引起的急性呼吸道感染。季节性流感在世界各地都很常见。大多数人不治而愈。 当人们咳嗽或打喷嚏时，流感很容易在人与人之间传播。接种疫苗是预防这种疾病的最佳方法。 流感的症状包括急性发烧、咳嗽、喉咙痛、身体疼痛和乏力。 治疗应以缓解症状为 ...
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.
Influenza - What You Need to Know - Drugs.com
Influenza Medically reviewed by Drugs.com. Last updated on Aug 4, 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 ...
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 ...
Influenza Update N° 529 - World Health Organization (WHO)
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 syncytial virus (RSV) is included where ...
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.
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 ...
Avian Influenza A (H5N1) - Cambodia - World Health Organization (WHO)
Avian influenza A (H5N1) is circulating in wild birds, poultry and some mammals around the world, and occasional human infections following exposure to infected animals or contaminated environments are expected to occur. In cases detected in Cambodia, exposure to sick poultry, often poultry kept in backyards, has been reported.
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