Typical pneumonia - Community-acquired pneumonia

Low urgency
CommonModerately severe

It is a lung infection acquired outside of the hospital.

It is generally caused by bacteria and virus, fungi or protozoa, being the most common cause the bacterium known as Staphylococcus pneumoniae.

It characteristically manifests with cough, fever and yellow-green phlegm but other symptoms associated can be chills, sweating, difficulty breathing, fatigue and chest pain that increases when breathing.

It is diagnosed through clinical questioning, physical examination, laboratory tests and imaging tests.

Supportive treatment includes oxygen therapy if moderate to severe respiratory failure, analgesics, antipyretics, bronchodilators, etc. Treatment varies depending on the causal microorganism.

Bibliographic references
  1. Lionel A. Mandell, Richard G. Wunderink. Neumonía. Neumonía extrahospitalaria. Harrison. Principios de Medicina Interna. Volumen 2. 19ª Edición. 804:811.
  2. Musher DM, Thorner AR. Community-acquired pneumonia. N Engl J Med 2014; 371:1619.
  3. File TM. Community-acquired pneumonia. Lancet 2003; 362:1991.
  4. A. Agustí-Vidal, J. Estapé, M.C. Guzmán, J. Sánchez-Lloret. Infecciones del aparato respiratorio. Neumonía extrahospitalaria. Farreras Rozman. Medicina Interna. Volumen I. Duodécima edición 775:784.
Author
Dr. Oscar Garcia-Esquirol
Copyright
© TeckelMedical 2026

Symptoms

    Greenish-yellow sputum


    Difficulty breathing


    Cough


    Coughing up more than usual


    Sharp stabbing chest pain

Symptoms to watch out for

Be 65 years old or more
Difficulty breathing
A feeling of shortness of breath
Fever that doesn't subside with antipyretics (paracetamol, ibuprofen)
Cough worsening
Pain in the chest when breathing
History of a severe lung disease such as chronic obstructive pulmonary disease (COPD)
Have some comorbidity such as diabetes mellitus, obesity, heart disease, kidney disease, brain disease, liver disease.
History of immunodeficiency (HIV, diabetes mellitus, oncological disorders, long-term corticosteroid consumption).

Self-care

Do not take antibiotics without medical advice.
Consume over-the-counter analgesics and antipyretics in case of muscle pain or fever (Tº > 38ºC).
Maintain hydration of 2L per day. Avoid soft drinks and fruit juices with high sugar content.
Maintain a balanced diet: increase fruit, vegetable, and white meat consumption and reduce the intake of fatty meals and fritters.