Our Symptom checker provides clinical advice on what to do next based on your symptoms.
Pneumonia is an infection of the lungs, often caused by bacteria or viruses. It can be mild or very serious. Learn more about the illness.
Legionnaires' disease is a severe and sometimes life-threatening form of pneumonia. Read more information about symptoms, diagnosis, treatment and prevention.
Severe acute respiratory syndrome (SARS)
Severe acute respiratory syndrome (SARS) is a virus that can cause severe pneumonia. It spread from China in 2002-2003. Know what to do in a future outbreak.
Chest infections are common in people of all ages and can easily be spread. Learn more here about the causes, symptoms and treatments for chest infections.
A tracheostomy is performed to create a small opening in the front of the neck into the windpipe to allow breathing through the throat.
Coronaviruses can cause several illnesses, from the common cold to serious respiratory infections and pneumonia. Learn more about coronaviruses.
Middle East Respiratory Syndrome Coronavirus is a disease the can cause fever, cough, shortness of breath and pneumonia in most infected people.
A pleural effusion is an abnormal build-up of fluid in the space around the lungs. It can be caused by many things, from pneumonia to kidney failure.
Links to articles about pneumococcal disease.
Invasive staph infections
Invasive staphylococchus (staph) infections, although far less common than staph skin infections, are usually more severe. Learn more about the different types here.