Influenza is an acute respiratory infection caused by the influenza virus. Its symptoms are usually more severe than those of the common cold, but with proper and timely treatment, recovery is possible without serious harm. However, some patients may still develop various complications from influenza.
Influenza is an acute respiratory infection caused by influenza viruses. Symptoms are typically more severe than a common cold, but with prompt and appropriate treatment most people recover without serious harm. However, some patients can develop complications from influenza.
What are the complications of influenza?
1. Respiratory complications
- Pneumonia, either from the influenza virus itself or from secondary bacterial infection
- Bronchitis
- Sinusitis
- Otitis media (middle ear infection)
- Respiratory failure
2. Complications in other systems
- Dehydration and electrolyte imbalance
- Myocarditis
- Pericarditis
- Encephalitis
- Myositis
- Worsening of underlying conditions such as heart disease, diabetes, and asthma
Who is at risk of influenza complications?
- Adults over 65 years
- Young children under 5 years
- Pregnant women
- People with obesity
- People with chronic conditions such as diabetes, chronic lung disease, asthma, heart disease, chronic kidney disease; those with weakened immunity; and those receiving immunosuppressive drugs or chemotherapy
Patients with influenza who are at risk for complications, those with severe symptoms, or those whose symptoms do not improve within 1 week should see a doctor immediately. People in high-risk groups should receive an annual influenza vaccination to build immunity and reduce the chance of severe complications.
