5 Common Causes Of Pneumonia

-Mantasha

The most common cause of bacterial pneumonia is Streptococcus pneumoniae. Other bacteria, such as Haemophilus influenzae and Staphylococcus aureus, can also lead to pneumonia.

Bacteria

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Viral pneumonia is often caused by influenza viruses (flu), respiratory syncytial virus (RSV), adenoviruses, and rhinoviruses. These viruses infect the lungs and cause inflammation.

Viruses

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Fungal pneumonia is less common but can occur in individuals with weakened immune systems. Fungi such as Pneumocystis jirovecii, Cryptococcus, and Histoplasma can lead to pneumonia.

Fungi

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When foreign substances, such as food, drink, or vomit, are inhaled into the lungs, even small foreign objects can cause aspiration pneumonia. 

Aspiration

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Inhalation of certain chemicals, fumes, or gases can irritate the lungs and lead to chemical pneumonia. This can occur in workplace settings or accidental exposures to toxic substances.

Chemical Irritants

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