Pneumonia is an inflammation of the lungs, usually caused by a chest infection. It sometimes follows flu, but can also be a complication of COVID-19. It's also possible to catch pneumonia without having flu or COVID-19 first. We'll help you recognise the symptoms of pneumonia, and explain how it might be avoided.
This is a companion discussion topic for the original article at https://patient.info/features/chest-lungs/what-you-need-to-know-about-pneumonia