What should you know about pathogen of pneumonia?

Bacteria are one possible cause, while respiratory viruses including influenza and COVID-19 can also produce pneumonia. Fungi and other organisms are less common and are more relevant in particular health circumstances. The organism may reach the lungs through breathed-in droplets, secretions, or material entering the airway. Inflammation can fill air sacs with fluid and make oxygen exchange harder, causing cough, fever, chills, phlegm, tiredness, or breathlessness. Symptoms alone cannot identify the pathogen; several infections can look alike.

Arrange a clinical assessment if pneumonia is suspected. A clinician may listen to your chest, check breathing and oxygen levels, and decide whether imaging or a sample of phlegm is useful. Mention recent travel, sick contacts, vaccination history, immune problems, and medicines. Do not start leftover antibiotics: they do not treat viral infections and an unsuitable medicine can delay appropriate care. Rest, drink fluids if you can, and follow the prescribed plan.

Seek urgent medical help for severe difficulty breathing, bluish or grey lips, new confusion, fainting, or inability to stay awake. Prompt assessment is also needed when fever or cough is worsening, chest pain occurs with breathing, you cannot keep fluids down, or you have a condition that weakens immunity. Pneumonia can sometimes lead to sepsis, so rapidly worsening illness with clammy skin, marked weakness, or unusual drowsiness needs emergency attention.

Ask which causes fit your symptoms, whether a chest image or sample is needed, how to take any prescribed medicine, and which changes should prompt urgent review.