Influenza (seasonal)
Influenza (seasonal)

Influenza (seasonal) in Viet Nam

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.

Most people recover from fever and other symptoms within a week without requiring medical attention. However, influenza can cause severe illness or death, particularly among high risk groups including those very young, the elderly, pregnant women, health workers and those with serious medical conditions.

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Up to 650 000 deaths annually

Up to 650 000 deaths annually are associated with respiratory diseases from seasonal influenza, according to new estimates by the United States Centers for Disease Control and Prevention (US CDC), the World Health Organization and global health partners.

Preventing diseases through vaccination

The most effective way to prevent the disease is vaccination. Safe and effective vaccines are available and have been used for more than 60 years.  Immunity from vaccination wanes over time so annual vaccination is recommended to protect against influenza. Vaccination is especially important for people at high risk of influenza complications, and for people who live with or care for the people at high risk. WHO recommends annual vaccination for:
­- pregnant women at any stage of pregnancy
- ­children aged between 6 months to 5 years
­- elderly individuals (aged more than 65 years)
­- individuals with chronic medical conditions ­health care workers

Personal protective measures

The public health management includes personal protective measures like:

  • ­Regular hand washing with proper drying of the hands
  • ­Good respiratory hygiene – covering mouth and nose when coughing or sneezing, using tissues and disposing of them correctly
  • ­Early self-isolation of those feeling unwell, feverish and having other symptoms of influenza
  • ­Avoiding close contact with sick people
  • ­Avoiding touching one’s eyes, nose or mouth
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