Influenza (Influenza) is an acute respiratory infection caused by the influenza virus. Symptoms of influenza are often more severe than the common cold. However, if treated correctly and quickly, it can resolve without severe danger. Nevertheless, some patients may develop various complications from influenza.

Influenza (Influenza) is an acute respiratory infection caused by the influenza virus. Symptoms of influenza are often more severe than the common cold. However, if treated correctly and quickly, it can resolve without severe danger. Nevertheless, some patients may develop various complications from influenza.

What Are the Complications of Influenza?

1. Respiratory System Complications

   • Pneumonia (caused by the influenza virus itself or secondary bacterial infection).

   • Bronchitis.

   • Sinusitis.

   • Middle ear infection.

   • Respiratory failure.

2. Complications in Other Systems

   • Dehydration and electrolyte imbalance.

   • Myocarditis (heart muscle inflammation).

   • Pericarditis (inflammation of the heart lining).

   • Encephalitis (brain inflammation).

   • Myositis (muscle inflammation).

   • Worsening of pre-existing conditions, such as:

     • Heart disease.

     • Diabetes.

     • Asthma.

Who Is at Risk of Complications from Influenza?

• Individuals older than 65 years.

• Young children under 5 years old.

• Pregnant women.

• Individuals with obesity.

• Those with chronic diseases, such as:

  • Diabetes.

  • Chronic lung disease.

  • Asthma.

  • Heart disease.

  • Chronic kidney disease.

• Individuals with compromised immunity.

• Those taking immunosuppressants or chemotherapy.

Note: Influenza patients at risk of complications—or those with severe symptoms or no improvement within 1 week—should seek immediate medical care.

Prevention

High-risk individuals should receive the annual influenza vaccine to build immunity and reduce the chance of severe complications from influenza.