Pneumonia: A Life-Threatening Disease Preventable with Vaccination

Pneumonia is a condition in which the air sacs and terminal airways leading to the air sacs in the lungs become inflamed due to infection by bacteria, viruses, fungi, or other irritants.

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Pneumonia: A Life-Threatening Disease Preventable with Vaccination

Pneumonia is a condition in which the air sacs and terminal airways leading to the air sacs in the lungs become inflamed due to infection by bacteria, viruses, fungi, or other irritants. The infection causes the lungs to become swollen with accumulated fluid or pus in the air sacs, leading to difficulty breathing, fever, cough, phlegm, and chest pain. In severe cases, pneumonia can be life-threatening, especially in high-risk groups such as young children, older adults, and individuals with underlying medical conditions.

Who Are the High-Risk Groups for Pneumonia?

Although anyone can develop pneumonia, the following groups are at higher risk of severe illness:

  • Children under 5 years old 
  • Older adults, especially those aged 60 and above 
  • Patients with chronic diseases such as heart disease, lung disease, diabetes, or kidney disease 
  • Individuals with weakened immune systems (such as cancer patients, those taking immunosuppressive medications, or people living with HIV) 
  • Pregnant women

When people in these high-risk groups develop pneumonia, their symptoms are often more severe, and recovery may take longer. Today, several vaccines are available that can directly or indirectly reduce the risk of pneumonia.

Which Vaccines Help Prevent Pneumonia?

Pneumonia is preventable through good basic health practices such as frequent hand washing, a healthy diet, and adequate rest. Most importantly, vaccination plays a crucial role in preventing infections that may lead to pneumonia. 

  • Influenza vaccine: Recommended annually, as influenza can lead to pneumonia, especially in young children, older adults, and patients with chronic diseases. 
  • COVID-19 vaccine: Although the pandemic situation has become endemic, COVID-19 remains an important cause of pneumonia. Vaccination helps reduce the severity and mortality of the disease. 
  • Pneumococcal vaccine: This vaccine prevents pneumococcal pneumonia, a leading cause of serious illness and death in older adults and people with medical conditions.
  • RSV vaccine: Respiratory syncytial virus is a major cause of pneumonia in young children and older adults, and it can lead to severe pneumonia. Vaccines are now available for older adults and high-risk groups. 
  • Pertussis (whooping cough) vaccine: Pertussis can cause severe respiratory infections that may progress to pneumonia. This vaccine is given in childhood, with booster doses recommended at certain ages, such as during pregnancy to prevent transmission to infants, and in adults or seniors.

Vaccine Recommendations by Age Group

  • Influenza vaccine: Annual vaccination is advisable for adults and seniors. 
  • COVID-19 vaccine: High-risk individuals should get an annual vaccination.
  • Pneumococcal vaccine: Recommended for adults 65 years and older. 
  • RSV vaccine: Recommended for adults 60 years and older. 
  • Pertussis (Tdap) vaccine: Booster vaccination recommended every 10 years. 

For the health of both mother and baby, pregnant women should receive influenza and Tdap vaccines.

Article by: Dr. Krit Madsalae

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Published: 20 May 2026

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