What is pneumococcal pneumonia?

Pneumococcal pneumonia is a lung infection caused by bacteria called Streptococcus pneumoniae. These bacteria can live harmlessly in the nose or throat, but in some cases, they can travel into the lungs and cause infection.

Pneumonia is an umbrella term covering respiratory infections caused by bacteria, viruses, or fungi. Not all pneumonia behaves the same way.

• Pneumococcal pneumonia is caused by bacteria and can become serious quickly, particularly in higher-risk groups, such as those who are immunocompromised or have certain underlying conditions.
• Viral pneumonia, like that caused by the flu, may resolve on its own in mild cases, but it can still become serious depending on a person’s age, overall health, and the type of germ causing the infection.
• Some types of pneumonia develop more gradually and tend to be milder (sometimes called “walking pneumonia”).

Pneumococcal pneumonia is contagious, and the bacteria typically spread through coughing or close contact. Many people carry the bacteria without getting sick, but in others, the bacteria can lead to infection.

Unlike the common cold, which affects the upper respiratory tract (nose and throat), pneumococcal pneumonia is a lung infection that affects the air sacs deep in the lungs, where it can interfere with breathing.

In some cases, the infection can spread beyond the lungs, leading to serious complications such as bloodstream infection or meningitis.

What are the symptoms of pneumococcal pneumonia?

Symptoms often begin suddenly and can range from mild to severe.

Symptoms of pneumococcal pneumonia may include:

• Fever
• Chills
• Cough
• Fatigue
• Difficulty breathing
• Chest pain

How pneumococcal pneumonia symptoms show up can vary by age and health status.

• Adults aged 50+
  • May not show classic respiratory symptoms
  • Confusion, disorientation, or reduced alertness may be early signs
• Adults with underlying health conditions
  • May experience typical symptoms such as cough, fever, and shortness of breath, but these may be more serious or harder to recover from
• Young children (under 5 years)
  • Symptoms may be less specific and harder to recognize, and can vary widely depending on the infection and the child’s age
  • These may include signs such as fever, difficulty breathing, low energy, irritability, or poor feeding
• Otherwise healthy adults
  • More likely to experience classic symptoms, such as fever, chills, cough, fatigue, shortness of breath, and chest pain when breathing or coughing

See your doctor if symptoms don’t improve or get worse. Ensure you seek emergency care for symptoms like severe breathing difficulty or chest pain.

Who is at risk for pneumococcal pneumonia?

If you are 50 or older, your risk of pneumococcal pneumonia increases more than sixfold, even if you feel healthy. While anyone can develop pneumococcal pneumonia, certain groups are more at risk, including:

• Adults aged 50+
• Young children under 5
• People with chronic conditions such as heart disease, lung disease, or diabetes
• Individuals with weakened immune systems
• Those who smoke, as this causes damage to the lungs and makes it harder to fight infection

Many people assume pneumococcal pneumonia is only something for the elderly or very sick to worry about. But age alone impacts your risk, meaning if you're healthy but over the age of 50, you're still considered higher risk.

This is worth keeping in mind not just for yourself, but for anyone you may be caring for. Even someone who appears well may be at elevated risk based on their age or health history. A conversation with their healthcare provider can help clarify what protection makes sense for them.

You can check respiratory vaccine eligibility, including pneumococcal pneumonia, and book vaccination appointments in minutes through VaxAssist by Pfizer.

How serious is pneumococcal pneumonia?

In the U.S., pneumococcal pneumonia leads to approximately 225,000 adult hospitalizations each year.

Pneumococcal pneumonia can range from mild illness to serious, potentially life-threatening complications. The risk of severe outcomes varies by group.

• Adults aged 50+
  • More likely to experience severe illness and develop complications, with those aged 65+ more likely to be hospitalized
• People with underlying health conditions
  • Higher risk of complications, including invasive infections such as bloodstream infection (bacteremia) or meningitis
• Young children under 5
  • More vulnerable to pneumococcal infection and more likely to develop serious illness
• Healthy adults
  • Can still become unwell, but are generally less likely to experience severe disease

In some cases, pneumococcal pneumonia can become serious and may need hospital care, which could include receiving antibiotics, oxygen support, or treatment for complications if the infection spreads beyond the lungs.

This is why pneumococcal pneumonia prevention plays such an important role. While treatment options for pneumococcal pneumonia exist, reducing the likelihood of severe illness in the first place remains the most effective way to protect those at risk.

Who should get the pneumococcal pneumonia vaccine?

Vaccination is one of the most effective ways to help protect against serious pneumococcal disease, particularly for those at higher risk due to underlying health conditions.

Vaccination helps lower the risk of serious illness from the types of pneumococcal bacteria it covers. It does not protect against every cause of pneumonia, including those caused by viruses or other germs.

Groups recommended for pneumococcal pneumonia vaccination include:

• Adults aged 50 years and older
• Adults aged 19–49 with certain underlying health conditions, including:
  • Chronic lung disease (e.g. COPD, asthma)
  • Chronic heart disease
  • Diabetes
• Individuals with weakened immune systems
• People who smoke
• Individuals with other risk factors identified by a healthcare provider

Even for people who feel well, vaccination can help protect against future illness and reduce the likelihood of complications.

Like all vaccines, the pneumococcal pneumonia vaccine can cause side effects, most commonly soreness at the injection site. Ask your doctor to explain the risks and benefits so you can make an informed decision.

You can check your eligibility and book your vaccinations using VaxAssist by Pfizer.

Why only one dose of the pneumococcal pneumonia vaccine is needed

In many cases, pneumococcal vaccination for adults only takes a single dose, depending on the vaccine used.

These vaccines work by targeting multiple strains of bacteria at once, helping the immune system build a strong and lasting response. This means one dose can provide meaningful protection without requiring multiple appointments, making it easier for people to stay up to date.

For more information, read Pneumococcal pneumonia vaccination in adults explained.

How is pneumococcal pneumonia treated?

Because pneumococcal pneumonia is bacterial, it is typically treated with antibiotics.

Milder cases can often be managed at home with medication and rest, while more severe infections may require hospitalization and supportive care such as oxygen therapy. Pneumococcal pneumonia treatment decisions depend on how serious the illness is and how a person responds.

Seek medical care if symptoms persist, breathing worsens, or fever remains high. Emergency care is needed for severe breathing difficulties or confusion.

Although treatment is effective, preventing infection is always preferable to treating severe disease once it develops.